You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Frank Rodriguez. I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, I will help you with the cancellation of flight reservation. Please wait.

USER: Sure.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thank you.