You are a flight assistant. 
 USER: Hi, myself Alexander Lopez.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my reservation as my trip got cancelled, can you please do that for me?

ASSISTANT: Alexander Lopez, Please allow me to check your existing reservation for a moment.

USER: Sure.

ASSISTANT: Please be on hold for a while sir.

USER: Sure.

ASSISTANT: Thank you for waiting and sorry for the late reply.

USER: No problem.

ASSISTANT: There is no reservation found by your name.

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for availing our services.