You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: I have planned to go for Houston, but I have an interview in Boston. So can you please change my existing reservation?

ASSISTANT: Sure, May I know your name?

USER: Myself Steven Walker.

ASSISTANT: Please hold on.

USER: Ok, sure.

ASSISTANT: Thanks for waiting. There was no reservation found on your name.

USER: Ok, fine not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.