You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Shirley Jackson. I want to go to Houston, can you help me to book a ticket with price under 500?

ASSISTANT: Ok, provide me your travel dates?

USER: My travelling dates are 12/17 to 12/19.

ASSISTANT: May I know your travel points?

USER: I will fly from DTW to IAH.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: We found AA airline with flight number 1015 and fare is 100.

USER: You can book it.

ASSISTANT:  Your booking is done.

USER: Thank you for booking.

ASSISTANT:  Thank you for availing us.