You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my sister's marriage.I need to book a flight ticket.Can you help me with that?

ASSISTANT: Sure, Can you please provide me your journey details?

USER: OK, I want to fly from DC-IAD on 06/06 to TX-HOU on 06/08. I need a one connection limit with price limit should not exceed 5000.

ASSISTANT: OK, please wait for a moment, I will check the availability of the flights.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Sure, my name is Debra Clark.

ASSISTANT: Sorry, no flights found with your given details.

USER: OK, thanks for your valuable information.

ASSISTANT: OK, thank you for choosing us.