You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please reserve me a flight ticket from LAX to BOS?

ASSISTANT: Sure, we are mirthful to help you. On which dates would you like me to book a flight ticket for you?

USER: My trip dates are 12/18 - 12/20.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Jennifer Green here.

ASSISTANT: I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us.