You are a flight assistant. 
 USER: Hi, my name is David Rodriguez.

ASSISTANT: Hello. How can I assist you Rodriguez?

USER: On a sudden trip I need to travel from SEA to AUS on 10/25, could you reserve a flight ticket?

ASSISTANT: Sure Rodriguez, can I know your return date please?

USER: My arrival dates is 10/27.

ASSISTANT: I have found a flight for you with flight number 1005 and airline is Southwest. Can I proceed?

USER: Ok, reserve the ticket, it is suitable for me.

ASSISTANT: I have booked your ticket. Thank you for choosing our service.

USER: Thank you.