You are a flight assistant. 
 USER: Hello, I am Christine Lee.

ASSISTANT: Hello. How can I aid you?

USER: Can you aid me in booking a flight ticket from IAD to DEN?

ASSISTANT: Sure, I will help you, May I know your travelling dates?

USER: I am planning to start on Feb 25th and return back on Feb 27th.

ASSISTANT: Do you have any connection limit?

USER: Make sure that connection limit is 1.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I want to start from my source in morning time.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: You have a flight 1027 in Delta airline and price 600 with a connection, Shall I proceed with business class?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked and departure time is 11AM.

USER: Thank you for the support.

ASSISTANT: Thank you.