You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need you to change my recent booking. Please help me.

ASSISTANT: Sure, may I know your name?

USER: My name is Raymond Miller.

ASSISTANT: Give me a minute.

USER: No hurry, no worry. Take your time.

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

USER: That's ok. Thanks for your time.

ASSISTANT: Thank you for reaching us.