You are a flight assistant. 
 USER: Hello, I am Sandra Allen.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I want to postpone my trip to April month, can you aid me to amend my reservation?

ASSISTANT: Sure, I am here to solve your problem. Please allow me a moment.

USER: Take your time.

ASSISTANT: Sorry Sandra Allen, there is no active reservation on your name in our database.

USER: No issues, I think it might not been booked properly by my spouse.

ASSISTANT: Thank you for reaching us.

USER: You are welcome, have a nice day.