You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Melissa Nelson. I want to attend for my niece's marriage in New York, so please book a flight ticket within a price limit of 200.

ASSISTANT: Sure. May I know your travelling dates?

USER: My departure day is 03/14, return day is 03/16.

ASSISTANT: Can you share me your airport codes?

USER: My source and destination airport codes are MN - MSP, NY - JFK.

ASSISTANT: Let me know your connection limit.

USER: Connection limit is one.

ASSISTANT: There is no connecting flight available to your destination.

USER: No problem, thank you.

ASSISTANT: Thank you.