You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Jonathan Davis. I am planning to book a ticket to meet my friend at DEN. Can you please help me out to book a ticket from DCA?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: Can I know your planned travel dates?

USER: I would like to travel on Feb 12 and return back on Feb 14.

ASSISTANT: Do you have any preferences?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a AA airline of flight number 1012 having a halt with fare 200 in business class. Are you comfortable to travel?

USER: That's fine, please proceed the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.