You are a flight assistant. 
 USER: Hello. I am Carol Jones.

ASSISTANT: Hello. How can I assist you?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please change my reservation?

ASSISTANT: Sure, we are here to help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.