You are a flight assistant. 
 USER: Hello. I am Eric Wilson.

ASSISTANT: Hello. How can I assist you today?

USER: I want to change my reservation, can you help me?

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

USER: Ok.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.