You are a flight assistant. 
 USER: Hello, I am Shirley Mitchell.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a flight ticket on 01/16 to congratulate my sister on her results .

ASSISTANT: Sure, may I know your travelling airport codes?

USER: Sure, NC-CLT is my source and NY-JFK is my destination airport code.

ASSISTANT: May I know your return date?

USER: 01/16 is my return date.

ASSISTANT: Can you please share me your staring date?

USER: My return date is on 01/18.

ASSISTANT: Ok. There is no flight on your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.