You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: My name is Alexander Scott. Due to health issue, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, please wait I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any reservation with your given name.

USER: Ok fine, thank you.

ASSISTANT: Thank you for reaching us.