You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, which service are you looking for today?

USER: I need to attend formula one racing event at New York, NY-LGA. can you help me booking a flight ticket?

ASSISTANT: Sure, from which airport will you depart?

USER: My take off point is from New York, NY-EWR.

ASSISTANT: Ok, please share me your preferable dates.

USER: I am planning to start on 11/31 to 11/02.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Can I have your name?

USER: I am Emily Campbell.

ASSISTANT: Sorry, there is no flight available on your route.

USER: No issue.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.