You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Me and my friends are planning to visit Lake Wylie for fishing at Charlotte, can you help me with booking?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My journey points are CA-OAK to NC-CLT.

ASSISTANT: Could you please share your journey dates?

USER: I will on 05/30 and recur on 06/01.

ASSISTANT: May I know your name please?

USER: I am Helen Roberts.

ASSISTANT: Ok, may I know your budget?

USER: I can pay up to 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a Southwest airline, flight number: 1003, price: 700 with one connection. Shall I proceed to booking?

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.