You are a flight assistant. 
 USER: Hello. I am Margaret Clark.

ASSISTANT: Hello, how may I aid you today?

USER: As my tour to Heard museum has been canceled. Could you help me in cancelling my reservation?

ASSISTANT: Sure, please wait for a moment I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we have not found any flight reservation with your given name.

USER: Its ok, thank you for your fast response.

ASSISTANT: Thank you for choosing us.