You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Hall.

ASSISTANT: How can I help you?

USER: I have reserved a ticket lat week but I have given some wrong details so please help me with changing my reservation.

ASSISTANT: Sure, just a moment please.

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

ASSISTANT: I am sorry no reservation found on your name.

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

ASSISTANT: Thank you for choosing us.

USER: Most welcome.