You are a flight assistant. 
 USER: Hello, I am Matthew Brown.

ASSISTANT: Hello, how can I assist you?

USER: I intend to travel from Boston to attend my brother's engagement at San Francisco, CA - SFO. Can you help in booking a connecting flight?

ASSISTANT: Sure, we are perky to serve you.

USER: Thank you.

ASSISTANT: May I know your source code?

USER: NY - LGA, New York.

ASSISTANT: Please share me your trip dates?

USER: On 02/09, I will fly and land at 02/11.

ASSISTANT: Please wait.

USER: Sure, I will wait.

ASSISTANT: Thanks for being on hold. I apologise that there are no flights found with your specifications.

USER: Ok, not a problem. Thanks for the information.

ASSISTANT: Thanks for choosing us.