You are a flight assistant. 
 USER: Hello. I am Anna King.

ASSISTANT: Hello, How can I help you?

USER: I am planning to conduct a free medical camp in New York, so please book a flight ticket from SEA to LGA.

ASSISTANT: Sure, we are here to help you. May I know your travelling dates?

USER: I want to fly on Jan 11, return on Jan 13.

ASSISTANT: Ok, do you need any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: Is there any other specifications?

USER: My price limit is 1000.

ASSISTANT: Thanks for providing details, we are sorry to inform you that, no flights are available on your journey routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.