You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I need to book a ticket from IAH to DCA. Could you book a ticket?

ASSISTANT: Sure, I am glad to help you with your request. Can you please provide your itinerary dates of travelling?

USER: My travelling dates are from Jan, 4 to Jan, 6.

ASSISTANT: Would you like to travel in a connecting flight or direct flight?

USER: I would be comfortable with single stop over.

ASSISTANT: At what time would you like to depart and return?

USER: I would like to return in the evening time.

ASSISTANT: Do you have any more specifications?

USER: I would like to prefer economy class.

ASSISTANT: On whose name I have to reserve the flight ticket?

USER: Myself Michael Clark.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 200 provided by American Airlines in economy class. Are you ok with this flight?

USER: Please book a flight.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1014.

USER: Thank you.

ASSISTANT: Thank you for approaching us. Happy journey.