You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Stephanie Lewis.

ASSISTANT: How can I assist you today?

USER: I am planning to visit multi-car 50 mile canyon road test drive in Denver, CO - DEN. Can you avail me to book a connecting flight?

ASSISTANT: Sure, can you please share your travel dates?

USER: I want to fly on 02/02 and recur on 02/04.

ASSISTANT: Could you please help me with the source airport code?

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

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Stephanie, I am sorry to inform you that there is no flight available at your requested dates.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for reaching us.