You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Elizabeth Johnson here. I want to book my ticket from Denver. Can you please help me with booking a flight ticket from DEN to DCA?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My planned travel dates are from Apr 24 to Apr 26.

ASSISTANT: May I know your connection limit please?

USER: My connection limit is 1.

ASSISTANT: Please share if you want to travel in any specific time?

USER: I want to return in the  afternoon time.

ASSISTANT: Do you prefer either business or economy class?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: No, I din't have any other specifications.

ASSISTANT: AA airlines is providing direct flight in your route with the fare of 200 in economy class which arrives in 17:00 PM, shall I proceed with the booking?

USER: Ok, please proceed with that flight ticket booking.

ASSISTANT: Your ticket is booked with the flight-1016.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.