You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I have to attend a trade show, due to my bad health I am unable to visit the trade show. Can you cancel my reservation?

ASSISTANT: Sure, could you please provide your name to proceed further?

USER: I am Anna Lee.

ASSISTANT: Ok, please hold on, let me check your reservation with us and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry unfortunately no reservation found with provided name.

USER: Thanks for the information.

ASSISTANT: Thanks for your interest, have a pleasant day.