You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jason Anderson here.

ASSISTANT: How can I assist you?

USER: I want to travel from HOU to JFK for attending a Seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Ok, may I know your travel dates to book?

USER: My travelling dates are from 07/07 to 07/09.

ASSISTANT: Ok, Thank you for waiting. Sorry as per your need there is no flights available. Thank you for connecting our agency.