You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend for an interview in Houston, so please book a flight ticket from ORD to HOU.

ASSISTANT: Sure, can I know the travel dates please?

USER: I will start on Mar 19, return on Mar 21.

ASSISTANT: May I know your name please?

USER: My name is Sandra Jackson.

ASSISTANT: Can I know the connection limit please?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: There is a direct flight in Spirit airline, can I book it?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.