You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Dorothy White here. I want to attend my uncle memorial service on 09/20 at Dallas& Fort Worth,TX-DFW. I will depart to Oakland,CA-OAK on 09/22.

ASSISTANT: Yes, we found a flight in Southwest airline with the number of 1019. The cost is 100 with single connection. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your ticket has been confirmed. Thanks for choosing us.

USER: Thanks.