You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Timothy Lee.

ASSISTANT: How can I assist you?

USER: Due to health issues, I need to cancel my recent reservation. Please help me in that.

ASSISTANT: Sure, I am here to help you. Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

USER: Not an issue, thanks for your help.

ASSISTANT: Thank you for reaching us, have a good day.