You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Donna Carter.

ASSISTANT: Nice to meet you Carter.

USER: I need to attend a business meeting in Houston.Can you book a ticket from DC - IAD to TX - HOU?

ASSISTANT: Sure, may I know your journey dates please?

USER: I want to depart on 02/24 and return on 02/26. The connection limit is 0.

ASSISTANT: Sorry to say this, there are no flights with 0 connections.

USER: That's Ok.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Anyway thank you for your help.

ASSISTANT: Welcome.