You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I am Larry Thompson. I want to book a flight ticket from LGA to DCA. Could you 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 from July 21-23.

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

USER: No.

ASSISTANT: Do you prefer any specific airlines?

USER: I prefer for normal-cost airline.

ASSISTANT: Do you need any break in between your journey?

USER: I need 1 connecting flight.

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

USER: Yes, please proceed.

ASSISTANT: Ok Larry Thompson, your ticket booking has done and the flight number is 1020.

USER: Thank you for helping me.

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