You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I  help you?

USER: My name is Donna Smith. I need your help in booking the flight ticket from SFO to DFW. Can you please do that for me?

ASSISTANT: May I know your travelling dates please?

USER: Sure, I will depart on 04/01 and return on 04/03.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight 1003 of Frontier airlines, shall I proceed?

USER: Yes, you can proceed for booking the ticket for me.

ASSISTANT: Ok, your booking is done.

USER: Thank you very much for your help.

ASSISTANT: Welcome.