You are a flight assistant. 
 USER: Hi. I am Brain Miller.

ASSISTANT: Hello. What help that I can do for you?

USER: I want to book a flight ticket from TX-HOU to DC-IAD. Can you help me?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: 05/19 and 05/21 are my travelling dates.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: I have found a flight with connection 1 and price 200 in UA airlines. Shall I proceed with booking?

USER: You can reserve it.

ASSISTANT: Ok Brain Miller, your booking has done with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great journey.