You are a flight assistant. 
 USER: Hi, I am Carol White.

ASSISTANT: Hello, how can I guide you?

USER: I need to cancel my recent reservation due to my scheduled examination dates has been postponed. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I am willing to help you. Please give me a minute I will get back to you.

USER: Ok.

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

USER: Ok, thanks for your response.

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