You are a flight assistant. 
 USER: Hello, I am Debra Martin.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket to attend conference meeting at Phoenix. Can you please book a ticket with one connection?

ASSISTANT: Sure. May I know the source and destination details?

USER: Sure, my destination airport is AZ-PHX and origin airport is PA-PHL.

ASSISTANT: Dates please?

USER: My dates are from 12/21 and return to 12/23.

ASSISTANT: May I know the price limit?

USER: My price limit is 500.

ASSISTANT: We have found a flight from Frontier airline with flight number 1007. Price 100 with one connection.

USER: Ok, you can proceed for booking.

ASSISTANT: Shall I proceed? Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.