You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from PHL to LAX, Can you please help me for booking?

ASSISTANT: Sure, let me know your travelling dates.

USER: I would like to travel on 03/20 to return on 03/22.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight in between my journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Sandra Allen here.

ASSISTANT: We found a Southwest airline, flight number: 1019, price: 200 with one connection.

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.