You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I am Rebecca Thompson.

ASSISTANT: Ok.

USER: I would like to fly from Detroit, to celebrate the folk festival with my parents which is in Denver.

ASSISTANT: Ok.

USER: Can you please help me with that?

ASSISTANT: To help you, and to reserve you a flight, first I need your airport codes.

USER: My boarding point is MI-DTW and landing point is CO-DEN.

ASSISTANT: Please forward your journey dates.

USER: My arrival will be on 01/14 and depart will be on 01/12.

ASSISTANT: Ok. Are you flexible to travel with direct flight in Delta airline?

USER: No.

ASSISTANT: Thanks for reaching us, We could not find any connecting flight for you.

USER: Ok, no issue. Thank you for your service.