You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation due to my health issue. Can you help me in cancelling reservation?

ASSISTANT: Please wait a moment.

USER: My name is Joseph Gonzalez. Sure.

ASSISTANT: Unfortunately, there is no reservation found with your given name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you.