You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Brenda Robinson.

ASSISTANT: Glad to meet you Brenda. How can I help you?

USER: I want to cancel my recent reservation due to my seminar got postponed.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Sure.

ASSISTANT: Sorry Brenda, there are no flights reserved on your name.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.