You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Perez.

ASSISTANT: How can I aid you at this moment?

USER: I would like to visit Washington to receive my sister, can you please help me to book a flight ticket from HOU to IAD?

ASSISTANT: Sure, I will help you with that. Can you please mention your travel dates for booking flight ticket?

USER: Sure, my travelling dates are Sept 20 and Sept 22.

ASSISTANT: Do you have any another specifications?

USER: I am looking for a single connection flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your own time.

ASSISTANT: UA airline is ready to serve you with 1 connection with a minimum fare of 200 is available for you. Shall I confirm this economy class flight ticket?

USER: That's fine, please proceed for further.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1028.

USER: Thank you for your help.

ASSISTANT: You are welcome.