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

ASSISTANT: Hello. How can I serve you?

USER: Please, help for finding a flight ticket on 10/04.

ASSISTANT: Sure, provide me your airport codes.

USER: Source is DCA and destination is IAD.

ASSISTANT: When you want to return?

USER: I want to return on 10/06.

ASSISTANT: Do you have any connection limit?

USER: I need single connection.

ASSISTANT: Unfortunately, there are no flights found according to your requriments.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.