You are a flight assistant. 
 USER: Hello. I am Joshua Davis.

ASSISTANT: Hello, How can I help you?

USER: As I am a event organizer for Culture, heritage and folk festivals, so look after all these festivals I want to book a flight to Boston, BOS from JFK. Can you help me?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I would start on 03/21 and return on 03/23.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. There are no flights found on your data.

USER: That's Ok, thanks for the information.

ASSISTANT: Thank you.