You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My friend birthday party place has been changed to Boston. Can you please change my existing reservation?

ASSISTANT: Sure. To check your previous reservation I need your name.

USER: I am Carolyn Rodriguez.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: We found that there is no reservation available with your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for contacting us.