You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me out in booking the ticket from PHX to DFW.

ASSISTANT: Sure, can you please share your journey dates?

USER: My trip dates will be Nov 20 to Nov 22.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Any other requirements to be met?

USER: I want a connecting flight.

ASSISTANT: May I know your name?

USER: Larry Miller is my name.

ASSISTANT: Ok, we found connecting flight 1006 in Spirit Airlines with fare of 100.

USER: Please proceed.

ASSISTANT: Shall I proceed with economy class?

USER: Yes, I am comfortable with economy class.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.