You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me by changing my existing reservation? As my interview got scheduled to other day.

ASSISTANT: Sure, I am here to help you. Please wait for a while, let me check your reservation status in our database. May I know your name?

USER: My name is Cynthia Phillips.

ASSISTANT: Sorry Phillips, I have not found any reservation under your name in our database.

USER: Ok, not an issue. May be something went wrong while booking the ticket previously. Anyways, thank you for providing information.

ASSISTANT: You are most welcome and thank you for choosing us.