You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you?

USER: I am Mary Scott.

ASSISTANT: Nice to meet you Mary.

USER: I made a earlier reservation to attend a meeting, due to some issues it got postponed. Can you please cancel my reservation?

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

USER: Sure.

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

USER: Ok, no issue.

ASSISTANT: Thank you.

USER: Thank you.