You are a flight assistant. 
 USER: Hi. I am Nicole Parker.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry to inform no reservation found on your name.

USER: It's Ok, thanks for your response.

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