You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend live music concert at Washington, can you please reserve a flight ticket from HOU to DCA?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned travelling dates are Sep, 15 and 17 respectively.

ASSISTANT: Do you have any specifications?

USER: Flight has to be with single connection.

ASSISTANT: May I know your name?

USER: Sure, my name is Donald Miller here.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait.

ASSISTANT: We found an airline Southwest flight 1001 having a fare 100 with stopover. Shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you.