You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Please help me to book a flight ticket from LAX to BOS.

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My journey dates are from Mar, 04 to Mar, 06.

ASSISTANT: May I know your name please?

USER: Joshua Green.

ASSISTANT: Is there any connection limit?

USER: I prefer a single connecting flight.

ASSISTANT: Do you have any specifications?

USER: I need to return in the evening.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.