You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Alexander King, I am planning to go for a holiday vacation to enjoy with my new relation, help me in booking my flight ticket from Detroit.

ASSISTANT: Sure, kindly mention your travel dates?

USER: My travelling dates are from 03/12 to 03/14.

ASSISTANT: Can you please help me with your airport codes? Ok, please wait a moment.

USER: MI-DTW is my source point, MN-MSP is my landing point. Ok.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Its ok, I will find other alternative. Thank you.

ASSISTANT: Thanks for reaching us.