You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to change my recent reservation. Can you help me out?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Ashley Edwards.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Ashley Edwards, I am really sorry to inform you that there is no booking found on your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.