You are a flight assistant. 
 USER: Hi. I'm Justin Walker.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to visit beautiful places in Dallas & Fort Worth due to holiday. Can you please book a plane ticket with a price limit of 500?

ASSISTANT: Sure.

USER: I need single connection.

ASSISTANT: Can you please share airport codes?

USER: I would like to depart from Phoenix, AZ - PHX and return from TX - DFW.

ASSISTANT: Can I know the travelling dates?

USER: My depart and return dares are 09/22 and 09/24.

ASSISTANT: Thanks for the information. Please wait for a minute, I will check availability and revert you.

USER: Ok.

ASSISTANT: We found a flight with a number:1014 with a single connection. The fare is 100.

USER: You can reserve this.

ASSISTANT: Your ticket has been booked with Hawaiian airlines.

USER: Thanks for your support.

ASSISTANT: Thanks for choosing us.