You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua Martinez.

ASSISTANT: How may I assist you for today?

USER: I planned to attend for a wedding in SEA, can you please help me to book a flight ticket from AUS?

ASSISTANT: Yes, I can help you. Can you share me your dates of travel?

USER: I prefer to travel on 07/15 and 07/17.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your time.