You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: John Allen here, can you please help me in booking the ticket from Austin to Seattle?

ASSISTANT: Sure, help me with your travel dates?

USER: My travel dates are 06/08 and 06/10.

ASSISTANT: May I know your airport codes of journey?

USER: Sure, my source airport code is AUS and destination is SEA.

ASSISTANT: There is a connecting flight with fare 100, the number is 1003 in airline Spirit. Can I book it?

USER: Yes, you can proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you so much for your help.

ASSISTANT: Thank you for opting us.