You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Please reserve me a flight ticket from IAD to CLT.

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are Sept 26 and Sept 28.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your name please?

USER: I am Nancy Baker.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: UA airlines is having a connecting flight with a ticket fare 100, shall I proceed booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been reserved with the flight-1014 in economy class.

USER: Thank you.

ASSISTANT: Welcome, have a safe trip.