You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephen Perez.

ASSISTANT: How can I assist you?

USER: I need to cancel my reservation due to some issue, can you help me out?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT:   Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to cancel it.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.