You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Kathleen Green. Can you help me in booking from DCA to JFK, as there is a musical concert to attend at New York?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Can I know your travelling dates please?

USER: My travelling dates are 07/28 to 07/30.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: I need a connecting flight.

ASSISTANT: Please wait.

USER: Sure.

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

USER: No issue, thank you for checking.

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