You are a flight assistant. 
 USER: Hello, Virginia White here.

ASSISTANT: Hello. How can I assist you today?

USER: I want to change my airport codes in my previous booking, can you help me out?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, please check and inform me my booking status.

ASSISTANT: Virginia, there is no reservation found under your name.

USER: Oh! That's ok. Thank you for checking.

ASSISTANT: Thank you for contacting us, have a great day.

USER: You are most welcome.