You are a flight assistant. 
 USER: Hello, I am Patrick Hall.

ASSISTANT: Hello, how may I assist you today?

USER: Please book me a flight ticket to Detroit, MI - DTW, to visit the Rolling Pub Detroit, with my friends. Can you help me?

ASSISTANT: Sure, may I know your source point?

USER: My source is from Washington, DC - DCA.

ASSISTANT: Please share your travelling dates?

USER: My travel dates are 10/18 - 10/20.

ASSISTANT: Do you prefer any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: We found a flight 1004 in Frontier airline the price is 200 with one halt. Shall I proceed with booking?

USER: Sure, proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for availing with us.