You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me with booking a flight ticket from DTW to LAS?

ASSISTANT: Surely, I will help you out.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: My travel dates are Mar 12 and 14.

ASSISTANT: Ok, please share your connection limit.

USER: I need a  connecting flight.

ASSISTANT: Is there any airline preference?

USER: I prefer normal cost airline.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in economy class.

ASSISTANT: Is there any time concern?

USER: No.

ASSISTANT: Can I have your name please?

USER: My name is Edward Thompson.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for choosing us.