You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from EWR to SEA, my travel dates are 09/24 to 09/26.

ASSISTANT: Sure. I found a flight in Southwest airline with flight number 1003.

USER: Catherine Phillips here, please proceed with booking.

ASSISTANT: Sure. Your ticket is booked successfully.

USER: Thanks for helping me out.

ASSISTANT: You are welcome.