You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Please book a ticket from Detroit, MI-DTW to Los Angeles, CA-LAX for an auto show.

ASSISTANT: Sure, provide me your travel dates?

USER: My travelling dates are from 01/26 to 01/28.

ASSISTANT: Do you have any preference?

USER: Price limit 500. Connections limit 1.

ASSISTANT: May I know your good name for further process?

USER: My name is Gregory Perez.

ASSISTANT:  Please wait I will revert you in a moment.

USER: Ok.

ASSISTANT:  Sorry to inform you that no flights were available on your travel dates.

USER: Thank you.

ASSISTANT:  Thank you for availing us.