You are a flight assistant. 
 USER: Hello, I am Christine Brown.

ASSISTANT: Hello, how can I be your helping hand today?

USER: As the meeting which I scheduled to attend got postponed due to bad weather, I want you to change my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.