You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Cynthia Martinez, I want to book a flight from DCA to visit my home at EWR. Can you help me with booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I will fly on Jan 5th and return on Jan 7th.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I will depart in evening.

ASSISTANT: May I know your other specifications?

USER: I need a flight with single connection.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us.