You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please book a flight ticket from DCA to ORD?

ASSISTANT: Sure, when are you planning to start and return on?

USER: Thank you. I have  planned my travel  dates as Nov 11 and Nov 13.

ASSISTANT: Is there any time concern?

USER: I am  looking for single connecting flight.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: No.

ASSISTANT:  On whose name I have to book the flight ticket?

USER: Please go with  my name James Jackson.

ASSISTANT: We have a connecting flight-1020 in economy class, shall I book it?

USER: Please proceed with booking.

ASSISTANT: Booking is done on Delta airlines.

USER: Thank  you for your  help.

ASSISTANT: Welcome James Jackson.