You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: Betty Garcia here.

ASSISTANT: Ok.

USER: Can you please book a flight ticket from IAD to DFW?

ASSISTANT: Sure, may I know the trip dates?

USER: Sure, I would like to travel on dates of 03/31 and 04/02.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is a flight 1012 in JetBlue airline has the price 200. Can I proceed?

USER: It is fine with me, please proceed with booking.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for booking of flight ticket.

ASSISTANT: You are welcome, have a nice day.