You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Kenneth Clark and I want to cancel my reservation due to having some health problems. Will you help me in this?

ASSISTANT: Sure, I am ecstatic to help you.

USER: Ok.

ASSISTANT: Please, give me a moment.

USER: Sure.

ASSISTANT: Thank you for being patience. I am here to inform you that, there is no reservation available with your name.

USER: No problem, I will go for another option. Thank you for availing me.

ASSISTANT: Thank you for contacting us.