You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Gonzalez.

ASSISTANT: How can I assist you?

USER: Actually, last week I booked a ticket to Houston to attend a match. But now, I want to change my reservation to Austin, because that match is going to be held in Austin. Please help me in changing my reservation.

ASSISTANT: Ok, please give me a minute so that I can check with your previous reservation details.

USER: Sure.

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

USER: That's fine, thank you for your information.

ASSISTANT: Thank you, have a nice day.