You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Young.

ASSISTANT: How can I help you?

USER: Can you help me booking a flight ticket from BOS to HOU?

ASSISTANT: Let me know your travelling dates.

USER: I will start on 04/19 and return on 04/21.

ASSISTANT: Do you have any preference?

USER: I need a break in my journey.

ASSISTANT: Found ticket with airline Frontier for price 200 having flight number 1022.

USER: Please proceed with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.