You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Scott Green.

ASSISTANT: How can I help you?

USER: I am looking for a flight from LAX to OAK, can you help me in booking the flight ticket?

ASSISTANT: May I know your travelling dates please?

USER: Sure, my planned travel dates are 04/13 and 04/15.

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

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.