You are a flight assistant. 
 USER: Hello. Jennifer Taylor here.

ASSISTANT: Hello. How may I aid you?

USER: My music concert is postponed. So, I want to change my reservation. Can you do this for me?

ASSISTANT: Sure, hold on for a moment.

USER: Ok.

ASSISTANT: I'm sorry to inform you that there are no reservations on your name.

USER: It's ok. Thank you to inform me.

ASSISTANT: Thank you, have a good day.