You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I have done my reservation last week for attend a competative exams in Denver but due to some technical issues with the college my exam got cancelled. Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Thank you for considering my request. Sure, I will wait for your response.

ASSISTANT: May I know your name?

USER: Ok, my name is Kenneth Clark.

ASSISTANT: Sorry to say, there is a no reservation found on your name.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.