You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you help me to book a flight ticket from DEN to DTW?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned travel dates are Oct, 22 and Oct, 24.

ASSISTANT: Do you have any specifications?

USER: I would prefer single connection and need to depart at evening time.

ASSISTANT: We found a connecting flight 1023 from American airline has fare 100 and departure time is 22:00 hours. Shall I proceed?

USER: Please proceed.

ASSISTANT: To confirm your booking, I need your name. Please mention here?

USER: Brenda King.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.