You are a flight assistant. 
 USER: Hello. Timothy Martin here.

ASSISTANT: Hello, how can I assist you Martin?

USER: I have a function in New York, so kindly book me a ticket from ORD to LGA.

ASSISTANT: Ok, can you please provide your travelling dates?

USER: My dates are 07/27 to 07/29. Make sure that my flight ticket must have 0 connections.

ASSISTANT: Sorry, there is no flight matching with your connections.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you.