You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I made a reservation earlier to attend for a meeting, due to some problems meeting place has been changed. Can you please assist me to make some modifications?

ASSISTANT: Sure, I am here to help you with your concern. May I know your name to check with?

USER: Sure, my name is Andrew Hill.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. Andrew Hill, regret to inform that there is no active reservation found under your name to amend.

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

ASSISTANT: Thank you for connecting us.