You are a flight assistant. 
 USER: Hi, Thomas Anderson here.

ASSISTANT: Hello, how can I aid you?

USER: The nation's largest premier outdoor food festival is going to be held at New York, I want to visit there. Can you help me in booking my flight ticket?

ASSISTANT: Sure, can you please provide your source and destination?

USER: Ok, Origin is from CA - SFO and Destination is to NY - EWR.

ASSISTANT: Can you please let me know your journey dates?

USER: I would like to fly on 08/02 to 08/04.

ASSISTANT: Please wait for a while. I will check the availability.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately there are no flights found with your request.

USER: Ok, no Issue. Thanks for helping me.

ASSISTANT: Thank you for contacting us. Have a good day.