You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Michael Adams.

ASSISTANT: Adams, how may I render you?

USER: I would like to travel Oakland for attending a seminar. Can you please help me in booking the ticket from DCA to OAK?

ASSISTANT: Sure, please provide your trip dates.

USER: I will drop-off 08/01 and again I will be return back on 08/03.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Frontier airlines with flight 1021 is available on your route with a connecting flight and ticket costs you 200.

USER: Yes, I am comfortable with that flight.

ASSISTANT: I have confirmed your ticket.

USER: Thank you very much for booking the ticket.

ASSISTANT: Thank you for reaching us.