You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Robert Nelson. Can you help me to cancel my recent reservation?

ASSISTANT: Please wait a moment, let me check with your details.

USER: Sure.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching our service.