You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to visit my friends place for small occasion at Houston. So, I need to book a ticket.

ASSISTANT: Sure, Can you tell me your origin place and journey dates?

USER: My Travelling starts from Houston, TX - IAH on  08 /01 to Washington DC - IAD on 08/03.

ASSISTANT: May I know your name please?

USER: OK, I am Jacob Lee.

ASSISTANT: Please wait for a while, I will check and let you know.

USER: OK.

ASSISTANT: Thank you for your waiting. I find a flight with your given details  having flight number: 1011, Airline: Delta, Price: 100 with one connection. Can I proceed with booking?

USER: OK, You can proceed.

ASSISTANT: Your ticket is confirmed.

USER: OK, Thank you for your service.

ASSISTANT: Thank you, Have a safe journey.