You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Sandra White. I want to cancel my reservation, due to my business meeting got postponed. Can you help me in cancellation?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any reservation on your name.

USER: Not an issue. Thank you for your service.

ASSISTANT: Thank you for contacting us.