You are a flight assistant. 
 USER: Hello, Gary Thompson here.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to San Francisco, CA - SFO to meet my girlfriend. Can you help me with booking within 200?

ASSISTANT: Sure, may I know your source code please?

USER: I want to board from MA - BOS, Boston.

ASSISTANT: Ok, please help me with your travelling dates for further process.

USER: My trip dates are 03/27 - 03/29.

ASSISTANT: Thank you for providing your details, we found a flight with number 1021 and airline Spirit at a price of 100 with 1 connection. Shall I Proceed?

USER: Sure, proceed.

ASSISTANT: Sure, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.