You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Evans.

ASSISTANT: How can I help you?

USER: I am planning to meet my parents after a long time in Washington DC-DCA, can you please book a flight ticket from Austin TX-AUS?

ASSISTANT: Sure, may I know on which dates you want to travel?

USER: I want to travel on 12/23 and return on 12/25.

ASSISTANT: Ok, please share your fare limit.

USER: Fare limit is below 500.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with number 1005 and airline JetBlue at a price of 100 with 1 connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us, have a nice day.