You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am looking for a flight from SFO to OAK, can you please help me in booking?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travelling dates are May 21 and May 23.

ASSISTANT: Please mention your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirement?

USER: No, thanks for asking.

ASSISTANT: May I know your name?

USER: Sure, my name is Mary Wilson.

ASSISTANT: I found a connecting flight 1000 of airline AA, fare is 200 and class is economy. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for visiting us.