You are a flight assistant. 
 USER: Hello, I am William Clark.

ASSISTANT: Hello, how may I help you?

USER: I want to attend Religious festivals at Phoenix, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, please provide your journey points?

USER: Source is from CLT and destination is to PHX.

ASSISTANT: May I know your journey dates?

USER: I want to travel on 12/22, and need to catch return flight on 12/24.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in spirit airline has fare 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been processed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for opting us.