You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Deborah Hill, I want to book a flight from DCA to meet my mother, can you book a return flight in the evening?

ASSISTANT: Sure, please share me your destination airport code?

USER: My destination airport code is AUS.

ASSISTANT: May I know your planned journey dates?

USER: I will fly on Aug 20 and return on Aug 22.

ASSISTANT: Please mention your connection limit?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.