You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Emily Mitchell, I have to attend client meeting at Denver. Can you please help me in reserving the ticket from OAK to DEN?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: I am willing to drop-off 07/07 and again I will retrieve on 07/09.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your kind response.

ASSISTANT: There is a flight 1027 of Spirit airlines, shall I proceed?

USER: What about the cost?

ASSISTANT: Price is 200.

USER: Yes, please go ahead.

ASSISTANT: Your booking is done.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Welcome.