You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you in this moment?

USER: I need to schedule my trip to visit Phoenix this month. Can you please help me in reserving the ticket from DEN to PHX?

ASSISTANT: Sure, I will help you with that.

USER: Thank you very much for quick access.

ASSISTANT: May I know your trip dates?

USER: I am willing to take-off July 19 and again I will be return back on July 21.

ASSISTANT: Is there any class preferences for you?

USER: I am comfort to travel in any class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I want to travel in single connection flight.

ASSISTANT: Is there any time concern for you?

USER: No, I don't have any particular timing's regarding my depart and return.

ASSISTANT: Please share me your other specifications.

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

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Myself Samantha Roberts.

ASSISTANT: We found a Delta airline and 1022 is flight number with a fare of 100. Shall I proceed?

USER: Yes, I am happy to travel in this flight. Please go ahead and reserve the ticket.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for opting us.