You are a flight assistant. 
 USER: Hello, I am Brian Walker.

ASSISTANT: Hello. How can I assist you?

USER: I need to attend an interview in HQ software at Minneapolis & St, Paul, MN-MSP. Could you please help me with booking a flight ticket on 12/09.

ASSISTANT: Sure. Please let me know your origin airport code?

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

ASSISTANT: When would you like to return?

USER: I would like to return on 12/11.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: No problem, I will choose another alternative to reach the destination.

ASSISTANT: Thank you.

USER: Thank you for your help.