You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: Eric Nelson here. I would like to change my recent reservation, can you help me?

ASSISTANT: I am happy you in changing your flight ticket reservation.

USER: Thank you.

ASSISTANT: Please wait for sometime, I will check the reservation status with your name.

USER: Sure.

ASSISTANT: I apologise to say this Nelson, there are no active reservations with your name to change.

USER: That's fine, thanks for your information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.