You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please reserve me a flight ticket from PHX to SFO.

ASSISTANT: Sure, I am happy to help you. When are you willing to travel?

USER: My travel dates are May 06 and May 08.

ASSISTANT: Do you prefer any break in between journey?

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Gary Campbell.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.