You are a flight assistant. 
 USER: Hello.

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

USER: I want to book a flight ticket from Boston BOS to Denver DEN. Can you find a flight ticket for me?

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

USER: Thank you for accepting my request. My itinerary dates are on July 19 and return on July 21.

ASSISTANT: Ok, please let me know your preferable connection limits.

USER: Yes, I need a single connecting flight.

ASSISTANT: Are you looking for any specific class to travel?

USER: Yes, I need a economy class please check with that.

ASSISTANT: Ok, please let me know your good name.

USER: Ok, I am Joshua Evans.

ASSISTANT: Please wait a moment to check flight availability.

USER: Sure. I will.

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

USER: Please proceed with the ticket booking.

ASSISTANT: Ok Joshua Evans, your ticket booking has done and the flight number is 1023.

USER: Thank you for your help.

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