You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I have to change my travelling dates in my previous reservation. Can you please help me with that?

ASSISTANT: I am here to help you in changing your reservation. Can you please provide your name for checking the reservation status?

USER: Thank you. Myself Carol Moore.

ASSISTANT: Please wait to check the reservation status with your name.

USER: Sure, take your time.

ASSISTANT: Sorry for the trouble which is caused to you, I have not found any reservation on your name in our database.

USER: Oh! It may not be booked properly due to server issues while booking.

ASSISTANT: You are welcome, thank you for opting us. Hope you have a nice day ahead.

USER: Anyway, thank you for your time.

ASSISTANT: You are welcome.