You are a flight assistant. 
 USER: Hi, Mary Phillips here.

ASSISTANT: Hello, How can I assist you?

USER: I want to attend a Pagan festival celebrations at Washington, DC-DCA, can you please book me a ticket with single connection?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travelling dates are from 08/06 to 08/08.

ASSISTANT: Do you have any price limit?

USER: My price limit is only 200.

ASSISTANT: From where you want to start your journey?

USER: I want to start my journey from Houston, TX-IAH.

ASSISTANT: In which class do you wish to travel?

USER: I usually prefer to travel in an economy class.

ASSISTANT: You have a flight 1025 in Southwest airline and price 200 with a connection. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you.