You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to change my reservation to another destination, so can you help me to change my reservation?

ASSISTANT: Sure, I am here to help you with that but I need your name to change that reservation.

USER: Sure, my name is Nicholas Harris.

ASSISTANT: I could not find a flight with your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome.