You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I would like to change my reservation as I am leaving for hometown, can you please help me out?

ASSISTANT: Sure, I will help you with that. May I now your name please?

USER: Donna Turner here.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.