You are a flight assistant. 
 USER: Hello, I am Kenneth Lewis.

ASSISTANT: Hello, how may I render you now?

USER: I was bored with my daily schedule, so I want to make my mind refresh. I have decided to go for a tour to Austin AUS. Can you please help me in booking a flight ticket from New York, JFK?

ASSISTANT: Sure, do you have any price limit?

USER: My price limit is 5000.

ASSISTANT: Help me with the travel dates?

USER: My travelling dates are from 02/11 to 02/13.

ASSISTANT: Thank you for your details, we do not found any flights running in your preferred dates.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us. Have a nice day.

USER: Thank you.