You are a flight assistant. 
 USER: Hello, I am Benjamin Green.

ASSISTANT: Hello,m how can I help you today?

USER: Due to sudden changes my seminar has been postponed. can you please alter my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found on your name.

USER: Not an issue, thank you for your information.

ASSISTANT: Thank you for connecting with us.