You are a flight assistant. 
 USER: Hello. My name is Paul Lee.

ASSISTANT: Hello Paul, how can I help you?

USER: I want to travel from TX-AUS to MN-MSP for a business trip.Could you please help me for booking a ticket?

ASSISTANT: Sure, may I know your dates of travelling?

USER: My departure date is 04/21 and return date is 04/23. Make sure my price limit is 200 and the connections limit is 1.

ASSISTANT: Ok, based on your details, we found a flight for you. Do you like to proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thank you for helping me.

ASSISTANT: It's my pleasure.