You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul King.

ASSISTANT: How can I help you out?

USER: I am looking for a flight on the route SEA to IAH, can you please find that any airlines providing service on this route?

ASSISTANT: Sure. Can I know your travelling dates?

USER: Sure, my travelling dates are 08/21 and 08/23.

ASSISTANT: Do you need any break?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a AA airline, flight number:1020 and the price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you.