You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to cancel my recent reservation because of some personal issue, I can not able to travel at this time.

ASSISTANT: Sure, please help me by giving your name so that I can you easily.

USER: Donald Anderson here.

ASSISTANT: Thanks for your response, there is no reservation found with your name.

USER: That's alright, thanks for your valuable information and great service.

ASSISTANT: Welcome Donald Anderson.