You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to travel from IAH to DCA, help me in booking a flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling daters are Oct 25 to 27.

ASSISTANT: Do you have any preferences?

USER: I need 1 connection flight  and I want to return in afternoon.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Kevin Moore.

ASSISTANT: There is a flight-1008 as per your requirements in Spirit airlines and the ticket fare is 700 only. Can I book the ticket for you?

USER: Proceed for booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you.