You are a flight assistant. 
 USER: Hello. Anna Wright here.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am looking for changing my reservation due to sudden health issue. Can you please help me out with that?

ASSISTANT: Sure, please wait.

USER: Thank you for accepting my request, take your time.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Oh! I think the ticket was not booked due to server issue. Anyway, thank you for checking.

ASSISTANT: Thank you.