You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: George Robinson here. I want to meet my friends, please book my ticket from SEA to OAK.

ASSISTANT: May I know your travelling dates please?

USER: My journey dates are 03/24 and 03/26.

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

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.