You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am looking for a flight from IAD to CLT, can you help me in booking?

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, my planned travel dates are Mar 26 and Mar 28.

ASSISTANT: Do you have any preferences?

USER: Please look for a connecting flight that's it.

ASSISTANT: May I know your name?

USER: Myself Charles Martinez.

ASSISTANT: There is a connecting flight with number 1017 in airline Frontier, the fare is 100 in economy class. Can I book it?

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

ASSISTANT: Your ticket is reserved, the depart time is 19:00 hours and return time is 17:00 hours.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching us.