You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How shall I help you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, may I know your name for checking purpose?

USER: My name is Alexander Nelson.

ASSISTANT: Thank you for your information, there is no reservation found on the name in our previous booking list.

USER: Ok, no issues with that. Thank you for your information.

ASSISTANT: You are welcome and thank you for approaching us.