You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sharon Campbell.

ASSISTANT: How may I abet you?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.

ASSISTANT: Ok.

USER: Can you help me to change my reservation?

ASSISTANT: Sure, I will help you with it. Please hold on a moment.

USER: Thank you. Sure.

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

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.