You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have met with an accident last day, so I will not able to travel as of now. Please do some changes in my existing reservation.

ASSISTANT: Sure, Please provide me your name.

USER: Sure, my name is Rebecca Wright.

ASSISTANT: Ok, There is no reservation with your name.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you, have a good day.