You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am looking for a flight from DEN to DCA, can you please help me in booking?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travelling dates are June 14 and June 16.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I don't have any specific time.

ASSISTANT: Do you prefer any specific class to travel?

USER: I am fine with any class.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Can I have your  good name please?

USER: My name is Janet Perez.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 200. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1025.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a great journey.