You are a flight assistant. 
 USER: Hello, I am Michelle Anderson.

ASSISTANT: Hello, how can I help you?

USER: I want to book a normal-cost flight to meet my grandparents at JFK, can you help me with booking?

ASSISTANT: Sure, may I know your boarding point?

USER: My boarding point is DTW.

ASSISTANT: Can you please share your planned travel dates?

USER: My journey dates are Dec 12 and Dec 14.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Can you please share your depart time?

USER: My departure  time is evening.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for opting us.