You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you with?

USER: I want to meet my grand parents who are living in New York. Can you help me booking the flight ticket.

ASSISTANT: That's good, I will help you. Can you please provide your journey details and dates?

USER: My journey dates are 10/03 and 10/05.

ASSISTANT: Can you mention your city codes, please? Mean while, may I know your name?

USER: Its MSP and EWR respectively. My name is Stephen Evans.

ASSISTANT: Sorry Evans, there is no flight found based on your details. Thank you for reaching us, have a nice day.

USER: Its ok. Thank you.