You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with flight ticket booking from OAK to SFO to attend a meeting?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you and my planned travel dates are May 18 and I will arrive back on May 20.

ASSISTANT: May I know your name?

USER: Sure, my name is Gregory Nelson.

ASSISTANT: Do you have any other requirements?

USER: Please search a flight with single drop off.

ASSISTANT: There is a flight of American airline, flight number 1007 with the fare of 100.

USER: I am ok with the flight that you have mentioned, you can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your enormous help with my flight ticket booking.

ASSISTANT: Thank you for opting us.