You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Jackson.

ASSISTANT: How can I address you?

USER: Please help me in booking a ticket from Washington, DC-IAD to Detroit, Mi-DTW.

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travelling dates are from 09/19 to 09/21.

ASSISTANT: Do you need any break?

USER: Yes, I need a break.

ASSISTANT: We found a Frontier airline, flight number:1016 and the price is 100.

USER: Please confirm my reservation.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.