You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to attend a dance competition at Houston, can you book a ticket for my journey from DCA to IAH locations?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, my journey dates are Sept 16 to Sept 18.

ASSISTANT: May I know your name please?

USER: Sure, I am Christopher Smith.

ASSISTANT: Do you have any connection limit?

USER: Yes, please find a flight with single drop off.

ASSISTANT: Are there any more specifications?

USER: No, thanks for asking.

ASSISTANT: We found a connecting flight with Spirit airlines, flight number 1024, price is 400 in business class. Shall I proceed?

USER: Yes, please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help with my flight ticket booking.

ASSISTANT: Thank you for approaching us.