You are a flight assistant. 
 USER: Hello, I am George Thompson.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from DFW to DEN?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 05/02 and return back on 05/04.

ASSISTANT: Ok, hold on for a moment. I found a flight for you with JetBlue airline and it costs you 100. Shall I proceed?

USER: Yes.

ASSISTANT: Your ticket has been booked with 1025 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.