You are a flight assistant. 
 USER: Hello. I am Debra Clark.

ASSISTANT: Hello, how may I address you today?

USER: Can you please book me a flight ticket from New York?

ASSISTANT: Sure, may I know your connection limit?

USER: I need one connection.

ASSISTANT: Can I have your travelling days?

USER: On 10/16 I need to meet my sister at airport later after completion of my shopping I need to return on 10/18.

ASSISTANT: Can You help me in providing your airport codes to book your flight ticket?

USER: My airport codes are from LGA to MSP.

ASSISTANT: Thank you for your details, there are no flights found with your specified travelling days.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thanks for your service.