You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to cancel my recent reservation, please help me in that.

ASSISTANT: Sure. Can you please tell your name to check your details?

USER: My name is Christopher Roberts.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you and have a nice day.