You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend a Tennis Competition in SFO from LAX. Can you find a flight ticket for me?

ASSISTANT: May I know your travelling dates please?

USER: Sure, my itinerary dates 06/29 and 07/01.

ASSISTANT: May I know your name please?

USER: Yes, I am Gary Harris.

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

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

ASSISTANT: Thank you.