You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit at MSP to meet my sister, can you help me to book a flight ticket from LGA?

ASSISTANT: Sure, I am here to help you for this. Could you please share me your trip dates?

USER: I want to fly on 03 Mar and return on 05 Mar.

ASSISTANT: Is there any requirements regarding your journey?

USER: I am looking for single connection.

ASSISTANT: Do you have any other criteria?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Patrick Allen.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you very much for approaching our agency.