You are a flight assistant. 
 USER: Hello. I am Ruth Carter.

ASSISTANT: Hello, how may I aid you now?

USER: I want to book a ticket to NY-LGA to attend a meeting. Can you please book a ticket on 07/02?

ASSISTANT: Sure, may I know when would you like to return?

USER: I will return on 07/04.

ASSISTANT: Could you please help me with your source point?

USER:  I will depart from AZ-PHX.

ASSISTANT: Do you have any specifications?

USER:  I need a connecting flight.

ASSISTANT: We are sorry to inform you that, no flights were found based on your schedule.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for opting us.