You are a flight assistant. 
 USER: Hello. Angela Wilson here.

ASSISTANT: Hello, how can I guide you for today?

USER: I need your help in booking of a flight ticket between HOU and DCA, can you please help me out with booking of a flight ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I am planning to move on 08/19 and please book my return ticket on 08/21.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Sure, take your time.

ASSISTANT: Here is a flight with ticket fare 100 in UA airlines with connection 1. Is it ok for you?

USER: Yes, I am ok with this, you can proceed with booking.

ASSISTANT: Your booking is confirmed with flight number 1029.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Welcome.