You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Kathleen Moore here, I am planning to meet my mother at Chicago, can you book a ticket for me?

ASSISTANT: Sure, may I know the airport codes please?

USER: Sure, I am looking to travel from PHX to ORD.

ASSISTANT: Ok, may I know the travel dates please?

USER: I am willing to start on 07/11 and return on 07/13.

ASSISTANT: Ok, hold on for a moment.

USER: Ensure that connection limit is 1.

ASSISTANT: I found a flight for you with Delta airline and it costs you 200.

USER: Please book it.

ASSISTANT: Shall I proceed? Your ticket has been booked with 1002 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: Welcome.