You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a flight ticket from JFK to DCA to meet my family?

ASSISTANT: Sure, let me know your travelling dates.

USER: I have planned to travel on Feb 13th and return on Feb 15th.

ASSISTANT: May I know your connection limit?

USER: I like one connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to depart at morning time.

ASSISTANT: May I know your name please?

USER: Emma Jackson.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.