You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to cancel my reservation? Because I have some work.

ASSISTANT: Sure, I will help you. Can you please tell me your name?

USER: My name is Mary Wilson.

ASSISTANT: Sorry, there is no reservation with your name to cancel further.

USER: OK, no issues. Thank you for choosing us, have a nice day.

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