You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Rachel Smith. I want to book a ticket from DCA to IAH to attend seminar, can you help me in booking?

ASSISTANT: Sure, I can help you. Kindly assign your preferred dates of travelling?

USER: I am departing on 02/27 and return on 02/29.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, my connection limit is 1.

ASSISTANT: We found a Delta airline, flight number:1004 and the price is 100.

USER: That's fine, please proceed the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.