You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend a Snooker's competition in PHL from DCA. Can you make a reservation for me?

ASSISTANT: Please provide me the travelling dates.

USER: Sure, my planned trip dates are on 10/13 and return on 10/15.

ASSISTANT: Please wait a moment.

USER: Ok, make sure that the connection limit 1.

ASSISTANT: Can I know your name please?

USER: Yes, I am Raymond Carter.

ASSISTANT: There are no flights available with your requirements Carter. Sorry for the inconvenience.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for your help.