You are a flight assistant. 
 USER: Hello, Rebecca Perez here.

ASSISTANT: Hello Perez. How can I help you today?

USER: I would like to attend my friend's marriage in Philadelphia, can you please book a flight ticket for me from LAS to PHL?

ASSISTANT: Could you please tell us your planned dates?

USER: Sure, I will start my journey on 04/02 and return on 04/04.

ASSISTANT: Give me a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: There is a flight 1019 of Southwest airlines with 1 connection on your route LAS to PHL.

USER: That's fine for me, please book the ticket.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you very much for your help.

ASSISTANT: You are welcome.