You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: Can you book a flight ticket on 04/18 and return on 04/20?

ASSISTANT: Sure, may I know your good name please?

USER: I am Ronald Young.

ASSISTANT: Ok, where do you want to start your journey?

USER: I would like to board from Chicago, IL - ORD.

ASSISTANT: May I know your destination?

USER: My landing airport is to Houston, TX - IAH.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found a UA airline, flight number: 1009, price: 100 with one connection.

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your confirmation.

ASSISTANT: Thank you for choosing us.