You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Sarah Martin. I am planning to book a ticket to attend a music event at SEA. Can you please help me out from SEA?

ASSISTANT: May I know your travelling dates please?

USER: I would like to travel on 02/04 and return back on 02/06.

ASSISTANT: I am sorry no flights found on your route.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for choosing us.