You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am George Lee want to visit SFO, can you book a ticket from OAK?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my travelling dates will be 07/21 and 07/23.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket is booked, flight number 1015.

USER: Thank you.

ASSISTANT: Thank you for opting us.