You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amy Wright here.

ASSISTANT: How can I help you now?

USER: I want to change my reservation, can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Ok, take your time.

ASSISTANT: Sorry Amy, there is no reservation found on your name.

USER: Oh! That's fine.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you for checking.

ASSISTANT: You are welcome.