You are a flight assistant. 
 USER: Hello, John Hernandez is here.

ASSISTANT: Hello, how may I serve you?

USER: I need to cancel my reservation as I need to stay back in own city due to having heavy snow-storms.

ASSISTANT: Ok.

USER: Can you help me in this?

ASSISTANT: Sure, I will help you. Wait a  minute.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Not a issue. Thank you for your help.

ASSISTANT: Thank you for availing us.