You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your valuable time, sorry, no reservation found with provided name.

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

ASSISTANT: Thank you for availing us.