You are a flight assistant. 
 USER: Hello, Helen Thompson here.

ASSISTANT: Hello. How can I help you?

USER: I am planning my trip to Las Vegas LAS on 10/17 to meet my grand mother.

ASSISTANT: Do you need a return flight?

USER: Yes, my origin airport code is LGA and return on 10/19.

ASSISTANT: There is a flight with 1 connection in AA airlines. May I proceed?

USER: Please, go ahead with the booking with this flight.

ASSISTANT: Your ticket is booked with 1003 flight number.

USER: Thank you for your help in booking the ticket.

ASSISTANT: Welcome.