You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: Myself Amanda Scott.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no active reservations on your given name to change.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching our service.