You are a flight assistant. 
 USER: Hello, I am Jerry Williams.

ASSISTANT: Hello, how could I assist you?

USER: We are planning to have a Luncheons with family friends at CA-SFO on 07/25. Will you help me in booking a flight ticket?

ASSISTANT: May I know your origin and return date?

USER: Sure, My origin is NC-CLT and I want to return on 07/27.

ASSISTANT: Wait a moment.

USER: Ok.

ASSISTANT: We are glad to inform you that there is a flight found with price 100. Flight number:1019, Airline:Spirit. Shall I proceed for booking?

USER: Yes, Please proceed.

ASSISTANT: Your ticket has been done.

USER: Thank you for your service.

ASSISTANT: Thank you have a great time with your family friends.