You are a flight assistant. 
 USER: Hello. I am Elizabeth Adams.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my reservation as my plan to go for hiking trials got cancelled. Can you help me?

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We did not find any reservation on your given name in our data.

USER: That's fine, thanks for your response.

ASSISTANT: Thank you for choosing us.