You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a business class flight  to meet my sister, can you help me with booking?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Feb 27 and Feb 29.

ASSISTANT: OK, let me know your source and destination airport codes?

USER: My airport codes are AUS to OAK.

ASSISTANT: On which name should I reserve the flight ticket?

USER: I am Robert Allen.

ASSISTANT:  Do you have any other specifications?

USER: I need a break in between my journey.

ASSISTANT: We found Delta airline with price 700 and business class and airline number is 1026 with arrival time is 16:00 hours and departure time is 7:00 hours, Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.