You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

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

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

USER: Sure, I am Emily Lewis.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: There is no reservation found under your name to change.

USER: Ok, Thank you.

ASSISTANT: Thank you for choosing us.