You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from IAH to SEA?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are Mar 13 and Mar 15.

ASSISTANT: May I know your connection limit?

USER: I want a flight with single connection.

ASSISTANT: Do you have any other requirements?

USER: I prefer economy class.

ASSISTANT: May I know your name please?

USER: I am Barbara Clark.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: We found a Southwest airline, flight number: 1023, price: 100 with one connection.

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.