You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from DEN to BOS, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my journey dates are Apr 11 and Apr 13.

ASSISTANT: May I know your connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: Sure, Laura Hill here.

ASSISTANT: We found a direct airline: Frontier, flight number: 1009 and price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.