You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from IAD to HOU, can you please help me in booking?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: My travelling dates are July 09 and July 11.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Ok, may I know your class preference?

USER: I prefer economy class.

ASSISTANT: Please provide me your name?

USER: My name is Stephen Thomas.

ASSISTANT: Here, I found a flight for you with single connection and ticket fare is 200 in economy class. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1024 and airline is UA.

USER: Thank you for booking.

ASSISTANT: Welcome. have a safe flight.