You are a flight assistant. 
 USER: Hello. I am Elizabeth Davis.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from OAK to DFW. My dates are from 05/19 to 05/21.

ASSISTANT: Sure, wait for a minute.

USER: Make sure that price limit must be 500 and connection limit must be 1.

ASSISTANT: There is a flight available for you from Jet Blue airlines with number 1019.

USER: Ok, book the ticket.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.