You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Due to some personal issues, I would like to cancel my journey. Can you please cancel my reservation?

ASSISTANT: Yes, sure. May I know your name?

USER: My name is Charles Phillips.

ASSISTANT: Charles, there is no reservation found with your name.

USER: Its ok, I guess I made a mistake while booking. Anyways, thank you for the information.

ASSISTANT: Most welcome.