You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Could you please help me in reserving the ticket from PHX to DEN?

ASSISTANT: Sure, may I know your trip dates to book your ticket.

USER: I would like to travel on Mar 8 and again I will return back on Mar 10.

ASSISTANT: Do you need any connections between your trip?

USER: I want to travel in single connection flight.

ASSISTANT: May I know your name to proceed further?

USER: Myself Jason Nelson.

ASSISTANT: Which type of class preference you are looking for?

USER: I am comfort to travel in any class.

ASSISTANT: Do you need any other specifications?

USER: No, I don't have any other specifications regarding my journey.

ASSISTANT: Thank you for providing your information, we regret to inform you that there is no flights going on your way.

USER: Not a big deal, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for contacting us.