You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Eric Evans.

ASSISTANT: How can I assist you?

USER: I just want to cancel my recent reservation, because my dance event was postponed.

ASSISTANT: Sure, give me a second.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found on your name.

USER: Ok, that's fine. Thank you for your services.

ASSISTANT: Thank you. Welcome.