You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Could you help me in booking a flight ticket from SFO to OAK?

ASSISTANT: Sure, I can help you with that. May I know the dates on which you are planning to depart and arrive?

USER: I will start on Feb 20, return on Feb 22.

ASSISTANT: Do you need break in between your journey?

USER: I need a single connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I do not have any other specifications.

ASSISTANT: May I know your good name please?

USER: My name is Mary Perez.

ASSISTANT: Delta airlines is providing a single connected flight with ticket fare of 200, shall I proceed for booking?

USER: Ok, proceed to booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1024, have a safe journey.

USER: Thank you.

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