You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: My name is Christine Young, I am planning to have fun with my friends at San Francisco. Can you help me with booking?

ASSISTANT: Sure, we are willing to help you. May I know when are you planning to travel?

USER: I would like to fly on 12/16 and return on 12/18.

ASSISTANT: Please share me your airport codes.

USER: My boarding point is MI-DTW and landing point is CA-SFO.

ASSISTANT: Do you have planned any budget for this journey?

USER: My budget is 5000.

ASSISTANT: Christine Young, we have a flight as per your request in Southwest airline at a price 100 with single connection. Can I proceed with flight 1017?

USER: Ok, please reserve my ticket.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.