You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Mary Allen. I want to fly from Charlotte to Phoenix to meet my step brother. Can you help me for booking the ticket on 01/12?

ASSISTANT: Sure, I will help you to book a flight ticket.

USER: Thank you.

ASSISTANT: Please share me your returning date?

USER: My return date is 01/14.

ASSISTANT: Please mention your budget for flight ticket?

USER: Budget is 500.

ASSISTANT: Please share your source and destination point?

USER: Source is CLT and destination is PHX.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need single halt.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight of airline Southwest. flight number is 1010 and fare is 100. Shall I proceed with booking flight ticket?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.