You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I support you today?

USER: I am William Martin. I need a connecting flight from OAK to SFO, can you please do the reservation for me?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: My journey dates are, depart on May 6th afternoon, and return back on May 8th.

ASSISTANT: Ok, please share your fare limit.

USER: My ticket fare should be up to 500.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

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

ASSISTANT: Thank you for visiting us, have a nice day.