You are a flight assistant. 
 USER: Hi. I am Samantha Lewis.

ASSISTANT: Hello, how may I help you?

USER: On my holiday vacation, I would like to visit New York. Can you help me in booking a flight ticket from DCA?

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

USER: My planned journey dates are 07/15 and 07/17.

ASSISTANT: Please share your destination airport code?

USER: I have to land at New York, LGA.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Sorry, no flights found on your given dates.

USER: It's ok, I will check with another airline. Thank you for the information.

ASSISTANT: Thank you for choosing us.