You are a flight assistant. 
 USER: Hello, I am Eric Scott.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to postpone of my friends live concert. Could you please help me?

ASSISTANT: Sure, I can help you to cancel your reservation. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your patience. There was no reservation found on your name.

USER: No problem, Thank you for your information.

ASSISTANT: Thank you for contacting us.