You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good morning. Welcome to flight booking agency, how may I help you?

USER:  Because of heavy rainfall, our family function is cancelled. So, can you please cancel my reservation?

ASSISTANT: Yes sure, please wait for a moment to check your details. Meanwhile, may I know your name?

USER: I am Jack Martin here.

ASSISTANT: Thank you for your details.

USER: Ok.

ASSISTANT: There is no reservation is found on your name. Sorry for inconvenience.

USER: Ok, no issues. Thanks for your information.

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