You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jennifer King here.

ASSISTANT: In which way I can aid you today?

USER: I would like to visit Washington for a business conference, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Could you please mention your travel dates for booking flight ticket?

USER: Ok, I am planning to leave on 06/12 and please book my return ticket on 06/14.

ASSISTANT: May I know your preferable airport code names for further process?

USER: Sure, I want to travel from EWR to DCA.

ASSISTANT: Thank you for providing your travel details. I will put the conversation on hold to check the best flights available in your route.

USER: Ok, take your time. But please make sure that flight should be with connection 1.

ASSISTANT: Sorry for the inconvenience no connecting flights available in this route as per your requested dates.

USER: Oh! So sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Welcome.