You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in changing my reservation as my trip dates got preponed?

ASSISTANT: Sure, help me with your name?

USER: I am Deborah Lopez.

ASSISTANT: Please be on hold.

USER: Ok, I will wait.

ASSISTANT: Thank you for being waiting, we do not found any active reservation in your name to make changes as per your request.

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

ASSISTANT: Thank you for opting us.