You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?

ASSISTANT: Please share your name to proceed further?

USER: I am Edward Lopez.

ASSISTANT: No reservation found as per your preferences in our database at the moment Edward.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.