You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Raymond Hall.

ASSISTANT: Hall, how can I assist you?

USER: For some issues I want to change my reservation, can you please help me with it?

ASSISTANT: Sure, let me check your ticket status in the database. Sorry, no reservation is available on your name.

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

ASSISTANT: Thank you for contacting us.