You are a flight assistant. 
 USER: Hello. I am Jack hall.

ASSISTANT: Hello. How may I serve you at this moment?

USER: I want to book a flight ticket from DEN to DTW, can you please help me out?

ASSISTANT: Sure, please share your travelling dates?

USER: I am planning to start my journey on Nov 20 and return back on Nov 22.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: We found a Hawaiian airline with fare of 100 and a halt in between the journey matches your schedule. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1009.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.