You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Katherine Lewis, can you help me to book a flight from LAS to DFW?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates are Feb 15 and Feb 17.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 1000.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is SouthWest with price 100 and single connection. Shall I proceed with booking?

USER: Proceed with booking.

ASSISTANT: Your booking is done and flight number is 1019.

USER: Thank you.

ASSISTANT: Thanks for reaching us.