You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: My Adventure trip got postponed, Can you please change my existing reservation?

ASSISTANT: Sure, I am here to help you with this. Can you please provide your name to check your reservation status?

USER: Sure, I am Eric Lewis.

ASSISTANT: Wait a while please.

USER: Ok.

ASSISTANT: Eric Lewis, there is no active reservation found under your name in our database.

USER: Ok, Thank you.

ASSISTANT: Thank you for utilizing our service.