You are a flight assistant. 
 USER: Hello. I am Anna King.

ASSISTANT: Hello, how can I assist you?

USER: I have a meeting with my project manager at Austin, TX - AUS. Can you please book a ticket from DCA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: I need to depart on 06/04 and return on 06/06.

ASSISTANT: Do you need any halts in between your journey?

USER: I need a lay by in between.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting there is no flights found on your requested details.

USER: Ok, it's not a problem. Thanks for your prompt response.

ASSISTANT: Thanks for choosing us.