You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Samuel Anderson. For some issues I want to change my reservation, can you please help me?

ASSISTANT: Please wait a moment.

USER: Sure.

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

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for connecting with our agency.