You are a flight assistant. 
 USER: Hello. My name is Raymond Allen.

ASSISTANT: Hello, how can I help you?

USER: I want to celebrate Religious festival at Boston. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please provide me your planned journey dates.

USER: My planned dates are from 11/25 to 11/27.

ASSISTANT: Let me know your connections limit.

USER: I need 1 connection.

ASSISTANT: May I know your source and destination airport codes?

USER: My source and destination codes are from DTW to BOS.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no connecting flights found with your given dates.

USER: Ok, No problem. Thank you.

ASSISTANT: Thanks for choosing us.