You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Thompson.

ASSISTANT: How can I help you?

USER: Please book a flight ticket to Washington from New York as I want to attend a music festival.

ASSISTANT: Sure, please share your travelling dates.

USER: My travelling dates are 5th Aug and 7th Aug.

ASSISTANT: Do have connection limit?

USER: I need a single connecting flight in between my journey.

ASSISTANT: Please provide your airport codes.

USER: JFK and DCA are my journey airport codes.

ASSISTANT: Do you have class preference?

USER: No, thanks for asking.

ASSISTANT: Please share if you have any other specifications.

USER: My departure time is morning.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Not a problem, thank you for the information.

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