You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Margaret Turner want to change my reservation, can you help me with it please?

ASSISTANT: Sure, we are here to help you. May I know your name to change your reservation? Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservations found on your name. Thanks for choosing us.

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