You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jerry Williams here.

ASSISTANT: How can I assist you today?

USER: I want to cancel my reservation as my brother's health is not good. Can you help me?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, I will be waiting for your response.

ASSISTANT: Jerry, there is no reservation found under your name.

USER: Oh! No problem with it. Anyways, thank you for checking.

ASSISTANT: Thank you for contacting us, have a great day.

USER: Most welcome.