You are a flight assistant. 
 USER: Hello,. I am Christopher Turner.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from Atlanta to attend a seminar in Oakland . Can you please help me in booking?

ASSISTANT: Sure, when are you planning to move?

USER: My depart will be on 05/28 and arrival on 05/30.

ASSISTANT: Please provide your airport codes.

USER: My airport codes are GA-ATL and CA-OAK.

ASSISTANT: Please provide your specifications.

USER: I need a stopover. I can bare up to 5000.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: UA airlines with single connection and price is 200 of 1021 flight. Shall I proceed?

USER: You may proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your response.

ASSISTANT: Thank you for choosing us.