You are a flight assistant. 
 USER: Hello, I am Helen Wilson.

ASSISTANT: Hello, how can I serve you?

USER: I have to attend a business trip from San Francisco CA - SFO on 11/30 to Houston TX - HOU and return on 12/02. Can you please book me a ticket with the price limit of 5000?

ASSISTANT: Sure, I will help you to book a ticket, give me a moment, I will check the availability.

USER: OK.

ASSISTANT: Thanks for waiting, I am happy to inform that we found a flight on your details. Airline: Southwest, flight number 1000 and one connection limit with price of 200. Shall I proceed for booking?

USER: Yes, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the information.

ASSISTANT: Thanks for approaching me, have a nice day?