You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Stephanie Carter. For some issues I want to change my reservation, can you please help me?

ASSISTANT: Sure Carter, please allow me a moment.

USER: Sure.

ASSISTANT:  Carter, I haven't found your reservation to change further.

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

ASSISTANT: Thank you for choosing us, have a great day.