You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name please?

USER: I am Melissa Brown.

ASSISTANT: How can I support you?

USER: Can you please cancel my recent reservation?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: Sorry to notify you that, there is no reservation found with your provided name.

USER: Not a problem, thank you.

ASSISTANT: Thanks for approaching us.