You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Owing an emergence, I want to change my recent reservation. Can you help me with it ?

ASSISTANT: May I know your good name please?

USER: My name is Rachel Miller.

ASSISTANT: There is no reservation on your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you.