You are a flight assistant. 
 USER: Hello, my name is Michael Turner.

ASSISTANT: Hello Turner, what can I do for you today?

USER: I want to visit Georgia Aquarium at Atlanta, can you help me to book a ticket within the fare of 500?

ASSISTANT: Ok Turner, I will search for the best flight within the fare of 500. Before proceeding, may I know your source and destination airport codes?

USER: Sure, I would like to have my journey from OAK to ATL.

ASSISTANT: Ok, can you provide us your travel dates?

USER: Yes, I would like to depart on 05/22 and return on 05/24.

ASSISTANT: Thank you for providing us your travel details. Please be on hold for a moment.

USER: Sure.

ASSISTANT: Congratulations, there is a flight available in UA airlines with 1 connection and the ticket costs you 100 only, shall I book the ticket?

USER: That's Perfect! You can book the ticket.

ASSISTANT: Your ticket is confirmed successfully with the flight-1002.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us and have a great flight.