You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Gary Jackson, want to travel from OAK to LAX. Please help me in booking my ticket.

ASSISTANT: Sure, when you want to travel?

USER: My travelling dates are from 01/26 to 01/28. Make sure, there should be direct flight in between my journey.

ASSISTANT: Sorry, there is no flights available on these route.

USER: It's ok, thank you for your help.

ASSISTANT: It's my pleasure.