You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: There is a slight change in my recent reservation, can you please help me?

ASSISTANT: Sure, I am here to help you for this. May I know your name please?

USER: Sure, the ticket is reserved under the name Ruth Brown.

ASSISTANT: Please wait for a while.

USER: Sure, I will.

ASSISTANT: Sorry for inconvenience, no reservation is found under your name.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you very much for contacting our agency.