You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a ticket from DCA to JFK, can you assist me in booking?

ASSISTANT: Sure, can you share your travel dates please?

USER: My trip dates are Dec 28th and Dec 30th.

ASSISTANT: May I know your good name please?

USER: Rachel Lewis.

ASSISTANT: Please share your connection limit.

USER: I need one connection between my trip.

ASSISTANT: Is there any other requirements to be met?

USER: No, you can proceed booking.

ASSISTANT: Sorry, there is no flight service on your required route.

USER: No problem, thank you for helping.

ASSISTANT: Thank you for approaching us.