You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Benjamin Miller.

ASSISTANT: Ok.

USER: I need to change my reservation due to my planned trip got postponed so please help me with changing my reservation.

ASSISTANT: Ok, sure I will help you with that. Can you please wait for a while.

USER: Sure, take your time to check.

ASSISTANT: Thanks for waiting, I did not find any active reservation in my database.

USER: Oh! It may not be booked properly. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us and have a safe journey in advance for your new trip.

USER: Most welcome.