You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rachel Anderson here.

ASSISTANT: How can I help you?

USER: Do you have any flight from SEA to HOU?

ASSISTANT: Your travelling dates please?

USER: My trip dates are 10/18 and 10/20.

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

USER: That's fine, thanks for your information.

ASSISTANT: Than you for choosing us.