You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Jacob Walker.

ASSISTANT: Thank you. Please be on hold for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found under your name in our database.

USER: No issues, thank you for checking.

ASSISTANT: You are most welcome.