You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Please book me a flight ticket from PHL to OAK to meet my family.

ASSISTANT: Sure, may I know your planned travel dates?

USER: I have planned to travel on June 06th and return on June 08th.

ASSISTANT: Do you have any limits on number of connections?

USER: I prefer connecting flight.

ASSISTANT: Do you have any another preferences on your journey?

USER: No, thanks.

ASSISTANT: May I know your name?

USER: Myself Shirley Robinson.

ASSISTANT: Sorry, no flights are available on your specified dates.

USER: Ok, no problem.

ASSISTANT: Welcome, thank you for reaching us.

USER: Thank you.