You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Could you please tell me how can I serve you?

USER: I need to visit Science exhibition at Washington, DC - DCA. Can you please book me a flight ticket from New York, NY - LGA?

ASSISTANT: May I know your trip dates?

USER: My trip dates are on 08/15 and 08/17.

ASSISTANT: Can you please tell me your source code?

USER: I have already mentioned above.

ASSISTANT: Ok. Can you please provide me your price limit and connections limit?

USER: 5000 is my budget. I need one connection in between my journey.

ASSISTANT: Sorry, no flight found with your connection limit.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Can you please mention your name?

USER: Charles Edwards is my name.

ASSISTANT: Ok, Edwards Thank you for reaching our service.