You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best guide you from my end?

USER: As my meeting got postponed I want to change my reservation, can you please help me out with this?

ASSISTANT: Sure, please provide your good name?

USER: My name is Jennifer Robinson.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you.