You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, do you want me to help you?

USER: I have a plan to visit my aunt after a long time but due to my work, I want to change my reservation.

ASSISTANT: Sure, Can I know your name?

USER: My name is Richard Thompson.

ASSISTANT: OK, hold on a minute.

USER: Sure.

ASSISTANT: Let me check the reservation based on your name. Thank you for waiting, we did not find any reservation based on your name.

USER: Thanks for the information.

ASSISTANT: Thank you for choosing us.