You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I want to fly from DEN to DCA. Can you check the flight availability on that route?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: My travelling dates are 03/29 and 03/31.

ASSISTANT: May I know your name?

USER: Sure, Nancy Young here.

ASSISTANT: Do you have any other requirements?

USER: I want a flight with single connection.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: There is a flight ticket which is a economy class in the Southwest  Airlines, the ticket cost is 100 and the connection limit is one. Shall I reserve the ticket?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your ticket is confirmed in an economy class and the flight number 1015.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe journey.