You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Ashley Davis.

ASSISTANT: Welcome to Austin airline agency. How can I assist you today?

USER: Yes, will you please change my recent reservation as I did a mistake in reserving my ticket. Can you help me with it?

ASSISTANT: Sure, please give me a moment.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found under your name.

USER: It's ok. Thank you for the information.

ASSISTANT: Welcome, have a great day.