You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patricia Campbell.

ASSISTANT: How can I  help you?

USER: I want to travel Austin this week day to promote my business. Could you please help me in reserving the ticket from DCA to AUS?

ASSISTANT: Your travelling dates please?

USER: I am willing to take-off 06/07 and again I will retrieve on 06/09.

ASSISTANT: I am sorry no flights found on your route.

USER: Not a big deal, anyway thank's for your kind service.

ASSISTANT: Thank you for choosing us.