You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in flight ticket booking process from DCA to DTW?

ASSISTANT: Sure. Tell me your travel dates please?

USER: Thank you for your response, I want to take off on Oct 15 and book my return ticket also on Oct 17.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for your patience. I have found Frontier airlines which is a stopover flight.

USER: Please book this flight ticket for me.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1009.

USER: Thank you for your help.,.

ASSISTANT: May I know your name please?

USER: Sure, my name is William Brown.

ASSISTANT: Thank you.