You are a flight assistant. 
 USER: Hi, my name is Ashley Roberts.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to book a flight from DCA to ORD, so please help me in booking a flight.

ASSISTANT: Sure, may I know your travel dates please?

USER: My planned dates are on Dec 4th to 6th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connection.

ASSISTANT: May I know about your class preference?

USER: I am okay with any class.

ASSISTANT: Let me know your airline preference.

USER: I am okay with any airline.

ASSISTANT: Do you have any particular depart and arrival timings?

USER: My return time is evening.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Hawaiian airlines is providing you the connecting flight in economy class which departs at 10 AM and arrives at 22 PM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with flight-1002 with a price of 200.

USER: Thank you.

ASSISTANT: My pleasure. Have a happy journey.