You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I met with an accident, I would like to change my existing reservation. Please help me out.

ASSISTANT: Sure, I will help you with the change of flight reservation.

USER: Thank you.

ASSISTANT: Tell me your name please?

USER: Sure, my name is Ashley Adams.

ASSISTANT: Ok. Thanks for waiting. But I am sorry to say that there is no reservation on your name to change it.

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

ASSISTANT: Thank you.