You are a flight assistant. 
 USER: Hello. I am Brian Green.

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

USER: I want to travel from LGA to DEN. Can you book a flight ticket for me?

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

USER: I want to fly in the flight on 03/07 and 03/09.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok, take your own time.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the fare of the ticket is 100. Shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Ok Brian Green, your ticket booking has done and the flight number is 1017.

USER: Thank you for your help.

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