You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to book a flight ticket in the month of Feb on 18 and 20?

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

USER: My airport codes are LGA and SFO.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a whistle stop in my journey.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No.

ASSISTANT: May I know your good name please?

USER: Kathleen Clark here.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.