You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from BOS to LAS to enjoy music festivals. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my travelling dates are Jul 14 and Jul 16.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: Please share your good name?

USER: Sure, James Phillips here.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no worries at all. Thank you.

ASSISTANT: Thank you for choosing us.