You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Green.

ASSISTANT: How can I help you?

USER: I want to book a flight ticket on 11/02 from LAX. Can you make a reservation for me?

ASSISTANT: Sure, may I know your destination airport code and date please?

USER: Ok, my destination code is SFO and the return date is on 11/04.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.