You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend a Marriage in Los Angeles. Can you please help me for booking the flight ticket?

ASSISTANT: Can I know your desired travelling dates?

USER: My travelling dates are Dec 12 and Dec 14.

ASSISTANT: Please share your connection limit?

USER: I need single connecting flight.

ASSISTANT: Can you please tell me your class preference?

USER: I want to travel in economy class.

ASSISTANT: May I know your travelling airport codes?

USER: My airport codes are BOS and LAX.

ASSISTANT: May I know your name?

USER: My name is Catherine Jones.

ASSISTANT: Sorry, no flights found on your route.

USER: Anyway, thanks for the information.

ASSISTANT: thanks for your information. Thanks for reaching us.