You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Perez.

ASSISTANT: How can I serve you?

USER: I want to change my reservation which was reserved to Houston. Can you help me?

ASSISTANT: Sure. Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. No reservation found on your name.

USER: Thank you for informing me.

ASSISTANT: Thank you.