You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from IAD to IAH, can you help me?

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are Aug 14 and 16.

ASSISTANT: Do you have any preference?

USER: I prefer a connecting flight.

ASSISTANT: Let me know your name.

USER: I am Rebecca Thompson.

ASSISTANT: Found ticket with Spirit airlines for price 100 having flight number 1014.

USER: You can book it.

ASSISTANT: Ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you.