You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my recent reservation, can you help?

ASSISTANT: Sure, may I know your name?

USER: Myself Emily Harris.

ASSISTANT: Please wait a moment.

USER: Sure.

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

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching our service.