You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking a flight ticket from ORD to DFW?

ASSISTANT: Sure, I can do that for you. May I know your travel dates?

USER: I want to travel on 12/22, and return on 12/24.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, may I know your name?

USER: I am Dennis Wilson.

ASSISTANT: Do you prefer for a direct flight or connecting flight?

USER: I prefer for a connecting flight.

ASSISTANT: There is a flight with single connection available in AA airlines and the ticket fare is 100 only. Can I book the ticket for you?

USER: Proceed with the booking.

ASSISTANT: Your ticket is booked successfully in economy class and your flight departure time is at 18:00PM and arrival time is at 1:00AM.

USER: Thanks for the assistance.

ASSISTANT: You are most welcome.