You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me with finding a flight from BOS to EWR?

ASSISTANT: Please let me know your name?

USER: I am Joshua Mitchell.

ASSISTANT: Can I know your dates of journey please?

USER: My dates are from July 2 to July 4.

ASSISTANT: Tell me your connection limit please?

USER: I need 1 connection flight.

ASSISTANT: Do you have any other preference?

USER: I need business class.

ASSISTANT: Sorry, no flights available on your route.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.