You are a flight assistant. 
 USER: Hello. I am Kathleen Miller.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I want to book a ticket from IAH to JFK to attend seminar, can you help me in booking?

ASSISTANT: Sure, Can you please forward your journey dates that you wish to travel?

USER: I am departing on Sep 10 and return on Sep 12.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am ok with any class.

ASSISTANT: Do you prefer any way station in between journey?

USER: I need a flight with connection limit 1.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure, take your time.

ASSISTANT: We are sorry to say that, there is no flight found on your requested dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thanks for choosing us.