You are a flight assistant. 
 USER: Hello, I am Michelle Wright.

ASSISTANT: Hello, how may I assist you?

USER: I would like to cloud Gate in Chicago, so could you please book a ticket for me?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, I would like to go on 02/23 and return back on 02/25.

ASSISTANT: Ok, may I know your airport codes please?

USER: My source and destination airport codes are PHL and ORD.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with 1026 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: Welcome.