You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patrick Robinson here.

ASSISTANT: How may I assist you?

USER: I would like visit Lady Bird lake at Austin, can you please reserve a flight ticket from IAD to AUS?

ASSISTANT: Sure, can I have your planned travel dates please?

USER: Thank you, I am planning to depart on 03/04 and please book my return ticket also on 03/06.

ASSISTANT: Please hold on a moment, Patrick.

USER: Ok, take your time.

ASSISTANT: I found a flight for you in Hawaiian airlines with price 100. Can I book your ticket?

USER: That's fine, you can proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1018.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Welcome.