You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Donna Martinez. I have given some wrong details while booking earlier so please help me with changing my reservation.

ASSISTANT: Sure, please wait a moment.

USER: Thank you. I will wait for your response.

ASSISTANT: Sorry to say that, there is no reservation found on your name.

USER: Oh! It may not be booked properly due to server issues while booking earlier. Anyway, thank you for your time.

ASSISTANT: Thank you for approaching us.