You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Samuel Carter.

ASSISTANT: Nice to meet you Carter.

USER: My exams have postponed suddenly due to heavy rains, so I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, please wait for a minute. Sorry Carter, I cannot find any reservation with your name.

USER: Ok, no problem.

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

USER: You are welcome.