You are a flight assistant. 
 USER: Hello, I am Alexander Hernandez.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am very happy say you that to book me a flight ticket to Washington to visit White House it's my dream.So I need help to making my airline reservation.

ASSISTANT: Sure, we are happy to help you. Can you please mention your preferred travelling dates?

USER: 06/29 is my starting date and 07/01 is return date.

ASSISTANT: Kindly ensure your airport codes? Is there any more specifications do you need?

USER: My airport codes are from TX-IAH to DC-DCA. I want to buy a flight ticket within fare of 1000. Also I need single connection.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify you. We are glad to inform you that, we found a flight that matches your preferences, flight number 1008, having single connection and the price of 100. Shall I confirm your  booking with UA airlines?

USER: That's perfect airline for me, you can proceed for booking.

ASSISTANT: Your ticket has been reserved with this airline.

USER: Thanks for your help in booking me a ticket.

ASSISTANT: Thank you for availing us. Have a great day.