You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a flight from BOS to DFW, can you help me in booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my planned travel dates are July 27 and July 29.

ASSISTANT: Do you have any preferences?

USER: Please look for a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Helen Perez.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I proceed?

USER: That's fine, please proceed in booking.

ASSISTANT: Your booking is done with flight number 1003. Happy journey.

USER: Thank you for the service.

ASSISTANT: You are welcome, have a nice day.