You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I would like to attend my friend's birthday party at Oakland, please help me in booking a ticket from DTW to OAK.

ASSISTANT: Sure, may I know your travel dates?

USER: My planned travel dates are on Apr 26 and Apr 28.

ASSISTANT: Is there any class preference for you?

USER: I am happy with any class.

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

USER: Yes, I need a flight with single connection.

ASSISTANT: May I know your depart and arrival time?

USER: I am fine with any timings.

ASSISTANT: Do you have any other requirements?

USER: No, thank you for asking.

ASSISTANT: May I know your good name please?

USER: My name is Daniel King.

ASSISTANT: There is a connecting flight with fare of 100 and 1000 flight number. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your seat has been reserved with Delta Airlines in economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing our services.