PICTURED: 'Person of interest' wanted over the disappearance of Seattle woman, 23, who was last seen leaving a club with him in Dallas during a visit to the city

Police have named a person of interest in the disappearance of a Seattle woman who vanished during a visit to Dallas on October 4. 

Marisela Botello was last seen leaving a nightclub with Charles Beltran on October 4 while visiting Dallas to see her ex-boyfriend. Authorities have been unable to locate Beltran and Botello has not been heard from. 

According to Botello's aunt, police tried to reach Beltran but he has moved and has disconnected his phone.  

Now, police are asking anyone with information to come forward. Beltran was last seen driving a black 2014 Audi A6 with Texas license plate MJG 3114.

Botello had gone on a trip to the city to visit her ex-boyfriend on October 2 and was due to fly back to the home she shares with her parents in Seattle, Washington state, the following day.

She hasn't been seen since. She never made her flight and her cellphone and credit cards haven't been used since the early hours of October 5.   

Marisela Botello was last seen leaving a nightclub with Charles Beltran on October 4 while visiting Dallas to see her ex-boyfriend, a different man

Surveillance footage outside the Select Start bar appears to show Botello leaving around 1:15 a.m. Monday morning and walking along the road with an unknown man

Botello traveled to Dallas to stay with her ex on October 2 for the weekend, her aunt Dennesly Castillo told Dateline.   

On the last night of her trip - Sunday October 4 - the 23-year-old wanted to go out, she said.

Castillo said her niece's ex-boyfriend had wanted to stay home so Botello had taken a Lyft alone to the Deep Ellum area. 

A Lyft receipt later confirmed she had been dropped off on Elm Street in the Deep Ellum area just after midnight. 

Botello failed to return to her ex-boyfriend's home that night and he grew concerned and called her parents, her aunt said. 

The next day Botello missed her flight back home.   

All her belongings, except for her cellphone and bank cards, are still at her ex's home and police said there has been no activity on her cellphone or bank cards since her disappearance. 

Her cellphone was last used around 4 a.m. on October 5, said Castillo. 

Surveillance footage outside the Select Start bar shows Botello leaving the bar around 1:15 a.m. Monday morning and walking along the road with Beltran. 

Botello disappeared after taking a ride to the popular clubbing district of Deep Ellum in Dallas on the night of October 4

'I was also able to get into her Snapchat account and see her camera roll,' Castillo told Dateline. 

'There's a picture of her in a purple dress from that night - the same dress in the surveillance video.' 

She said the family had also managed to access Botello's email, social media and bank accounts - all of which have not been used.   

'That to me is a huge red flag,' said Castillo. 

'She's 23 and hasn't used her phone for social media or texts or anything in three weeks? It makes no sense. 

'We're just really worried that something happened to her.' 

She said it was out of character for her niece to not get in contact.  

'She was scheduled to fly back to Seattle that Monday,' said Castillo. 

'But she never made the flight. And she hasn't returned home. 

'She's an avid traveler and she's always in contact with someone. She wouldn't just miss a flight or cut all communication like this.'  

Botella's distraught mother Ernestina Valadez told WFAA she couldn't understand why her daughter's ex-boyfriend let her go out alone. 

'If she went to visit him, why did he let her go alone that night? That's the number one question I have,' said Valadez. 

'Every day that passes is very difficult.' 

The outlet reported that Botella's ex-boyfriend is not a suspect in her disappearance but that police do have a person of interest, according to sources.  

Botello is 5'2' tall, weighs 115 pounds and has brown eyes and brown hair. She was last seen wearing a metallic purple dress and her hair half-up. 

Dallas Police are asking anyone with information to contact the youth operation's unit at (214) 671-4268 or email missingpersons@dpd.dallascityhall.com