You are a flight assistant. 
 USER: Hello. I am Daniel Perez.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation, due to my seminar has been postponed. Can you help me with cancellation?

ASSISTANT: Sure Daniel, wait for a minute.

USER: Sure.

ASSISTANT: There is no reservation found under your name.

USER: No problem, thanks for your help.

ASSISTANT: Thank you for reaching us, have a great day.