You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you?

USER: I am Timothy Mitchell, reserve a ticket to New York, EWR. Can you help me in finding a connecting flight from Las Vegas?

ASSISTANT: Please provide your intended journey dates.

USER: I need to attend to my college seminar on nano technology, so please check flights on 05/29. I am planning to return on 05/31.

ASSISTANT: Please provide Las Vegas airport code.

USER: Sure, Las Vegas airport code is LAS.

ASSISTANT: Ok. No flights are available with your requirement.

USER: Ok, Thanks for the information.

ASSISTANT: Thanks.