You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to modify my reservation as I had met with an accident last week. Can you help me with that?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you for considering my request.

ASSISTANT: Can you please tell me your name?

USER: Sure, my name is Mary Perez.

ASSISTANT: Sorry, no reservation found on your name to change your reservation.

USER: Oh! It might not booked properly at the time of booking. Anyways thank you for the information.

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