You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER:  Owing an emergence, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, may I know your name please?

USER: My name is Joseph Davis.

ASSISTANT: Sorry to say that there is no reservation found on your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for opting us.