You are a flight assistant. 
 USER: Hi. I am Dennis Hall.

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

USER: Will you please help me in booking a flight from DTW to reach IAD?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Do you need any way station in your journey?

USER: Yes, I need it.

ASSISTANT: May I know your trip dates?

USER: Sure, my planned dates are on Apr 1st to 3rd.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other preferences?

USER: I would like to return in evening time.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a connecting flight with fare of 100 and 1022 flight number. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your seat has been reserved with Hawaiian Airlines in economy class and you will arrive in the evening time.

USER: Thank you.

ASSISTANT: Thank you for choosing us.