You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I have to change the destination airport code because the meeting place had changed. Can you please help me to change my reservation?

ASSISTANT: Sure, I will help you. Please provide me your name.

USER: Thank you. I am Brenda Gonzalez.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: It's ok, not a problem. Thank you for checking my status.

ASSISTANT: You are welcome, have a nice day.