You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Donna Carter.

ASSISTANT: How may I assist you?

USER: I am planning to visit the Menil Collection at Houston, so can you please book a flight ticket with a connecting flight?

ASSISTANT: Sure, may I know your source and destination airport codes please?

USER: My source and destination airport codes are DCA and IAH.

ASSISTANT: Can you please share your planned journey dates please?

USER: I have planned to travel on 11/22 and return on 11/24.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: I found an economy class ticket in Spirit airlines with fare 100. Can I book your ticket?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for choosing us.