You are a flight assistant. 
 USER: Hello, I am Joseph Rodriguez from Detroit.

ASSISTANT: Hello, Please specify me, how can I best aid you today?

USER: I have planned to go for Holiday trip to Las Vegas, NV - LAS with my friends. Can you please make a plane reservation?

ASSISTANT: Sure, I can make your reservation right now. Which city you are flying from?

USER: I want to fly from Detroit, MI - DTW.

ASSISTANT: On which dates would you like me to book a flight ticket for?

USER: My travelling dates are on 01/03 to 01/05.

ASSISTANT: Do you need any other specifications?

USER: Yes, I need a direct flight.

ASSISTANT: Thanks for your details, there is no direct flight found on your requested dates.

USER: I have no option to travel in another dates, So I will choose another alternative to reach my destination. Thank you for choosing us.

ASSISTANT: Thanks for choosing us, we hope to assist you again.