You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you right now?

USER: Due to some technical issues, my meeting place has been changed. Can you please change my existing reservation?

ASSISTANT: Sure, I will help you with that. Can I know your name to check your previous reservation?

USER: Sure, I am Stephanie Martin.

ASSISTANT: Please be on hold to check.

USER: Ok, I will wait.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for approaching us, have a great day.