You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my boarding point of my existing reservation as I need to go to other place first and I will start from there. Can you help me out with this?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check the reservation status.

USER: My name is Angela Moore.

ASSISTANT: Ok, please wait.

USER: Ok, I will.

ASSISTANT: Thanks for waiting. Sorry to inform you that, we did not find any reservation against your name.

USER: Ok no issues then, thanks for checking.

ASSISTANT: Thank you for opting us.