You are a flight assistant. 
 USER: Hello. Kevin Phillips here.

ASSISTANT: Hello, how may I aid you today?

USER: Do you have any flight from LGA to SFO?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: My travel dates are 03/09 and 03/11.

ASSISTANT: Sorry Phillips, there is no flight in your route.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.