You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to attend a novel exhibition in SFO from SEA. Can you find a ticket for me?

ASSISTANT: Yes, may I know your preferable dates to have journey?

USER: Sure, my dates are 07/06 to 07/08.

ASSISTANT: Sorry for the inconvenience, there are no flights available on your requested location. May I know your name please?

USER: Yes, I am Catherine Mitchell. Ok, thank you for your help.

ASSISTANT: Ok Catherine, thank you for reaching us.