You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of help are you seeking from me?

USER: I am Jonathan Anderson and I want to cancel my reservation due to my exam got postponed.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: There is no reservation found with your specified name.

USER: No issue.

ASSISTANT: Thanks for reaching our service.

USER: Thank you for your response.