You are a flight assistant. 
 USER: Hi. I am Timothy Collins.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please cancel my existing reservation as my plan to attend a seminar got cancelled?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, sorry, no reservation found with your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for approaching us.