You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I made a reservation earlier to go for Adventure trip, but it has been postponed. Can you please change my reservation?

ASSISTANT: Sure, I will help you with that. Can you please provide your name to check your previous reservation?

USER: Sure, I am Paul Moore.

ASSISTANT: Please wait a moment to check.

USER: Ok.

ASSISTANT: We regret to inform you that there is no reservation found on your name in our records.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.