You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you now?

USER: I very interested in travelling, so for this time I would like to travel San Francisco-SFO, is there any flight available on 10/26?

ASSISTANT: Sure, please could I know your source airport code and return date?

USER: Sure, I would like to start from Seattle which is nearest to SEA airport and return from SFO on 10/28.

ASSISTANT: Please share your name for further process.

USER: My name is Raymond Williams.

ASSISTANT: Please wait for a while.

USER: Sure. Please make that I need a direct flight in my trip.

ASSISTANT: Yes Raymond, I found a flight-1029 for you with 1 connection in your route, shall I book?

USER: No, please do not book my ticket with the above flight.

ASSISTANT: Ok. Thank you for reaching us.

USER: Thank you for your great service in helping.

ASSISTANT: You are welcome.