You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to cancel my reservation due to bad weather conditions at my destination location, can you please help me out with that?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Sorry, I would like to change that reservation.

ASSISTANT: Ok, please mention your name to change your reservation.

USER: Thank you for accepting my request. Myself Catherine Harris.

ASSISTANT: Ok, please give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no reservation found on your name to change your reservation.

USER: That's ok, no problem. Anyway thank you for checking out.

ASSISTANT: Welcome, have a nice day.