You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Turner.

ASSISTANT: How can I assist you today?

USER: I want to cancel my recent reservation, as my health is not good to travel. Can you please help me with this?

ASSISTANT: Sure, I can definitely help you with that. Please wait for a while. Jack, there is no reservation found under your name to do cancellation.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.