You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how cam I assist you?

USER: Myself Ashley Walker. I would like to travel from SEA to AUS to attend my sister marriage, please help me for booking flight ticket.

ASSISTANT: Sure Ashley, could I please know your travel dates?

USER: My travel starts on 06/17 to 06/19.

ASSISTANT: Ok, please wait.

USER: And also, make sure price limit 500.

ASSISTANT: Sure, the flight number is 1009 of Delta airline fulfil your requirements.

USER: Ok, proceed for booking. Thank you for your services.

ASSISTANT: Ok, your ticket is booked. You are welcome.