You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Suddenly, My sister fallen sick so, I want to change my reservation. My name is Ashe.

ASSISTANT: Ok, wait a moment I will check your details.

USER: Sorry, My full spell is Ashley Adams. Please, check details on Ashley Adams.

ASSISTANT: Sorry Adams, no reservation found for you.

USER: Thank you for Your details.

ASSISTANT: Thank you, have a nice day.