You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Pamela Anderson. I want to cancel my reservation, due to my interview got postponed. Could you help me in cancellation?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: No reservation exists by name Pamela Anderson.

USER: Not an issue.

ASSISTANT: Thanks.

USER: Thanks for your service.