You are a flight assistant. 
 USER: Hi. I am Jonathan Moore.

ASSISTANT: Hello, how may I help you today?

USER: As I met with an small accident I could not my documentation.So I would like change my existing reservation. Could you please help me with changing?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, not an issue. Thank you for your kind information.

ASSISTANT: Thank you for opting us.