You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to travel from IAH, can you reserve me a ticket from DCA?

ASSISTANT: Sure, I am here to help you. Can I have your travelling dates?

USER: My trip dates are Dec 12 to 14.

ASSISTANT: Do you prefer any break in between journey?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Michelle Anderson.

ASSISTANT: We found a connecting flight in Spirit airline with a fare of 200 which departs at 12:00 and return at 11:00. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1023.

USER: Thank you.

ASSISTANT: Thank you for choosing us.