You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Will you please cancel my existing reservation as I choose to travel in other way?

ASSISTANT: Sure, can I know your name please?

USER: My name is Mary Garcia.

ASSISTANT: Sorry, there is no reservation found with your name to cancel.

USER: It's ok, thank you for the information.

ASSISTANT: You are welcome.