You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to attend meeting in New York. Can you please help me in booking flight ticket from ORD to LGA?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My trip dates are May 18 to May 20.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Ok, may I know your arrival and departure time?

USER: I don't have any particular timings.

ASSISTANT: Ok, do you have any specifications?

USER: I need to travel with normal cost airline.

ASSISTANT: Ok, please share me your name for documentation purpose.

USER: Sure. Myself Kathleen Nelson.

ASSISTANT: Sorry, no flights are available on your route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome, have a nice day.