You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: I have a reservation to attend a meeting. due to some technical issues meeting place has been changed. Can you please change my existing reservation?

ASSISTANT: Sure, please wait a moment. Sorry, no reservation has been found with your name. May I know your name for documentation purpose?

USER: Melissa Martin is my name.

ASSISTANT: Ok, thank you for reaching us.

USER: Thanks for your kind response.