You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to visit Boston, MA - BOS for attending to a business meeting, can you help me to search a flight?

ASSISTANT: Sure, please provide your origin airport code?

USER: I am Donna Collins from New York, NY - LGA.

ASSISTANT: Ok, please let me know your travelling dates?

USER: My travel dates are 09/26 and 09/28. Make sure that connection must be 0.

ASSISTANT: There is flight 1021 with 1 connection. Would you like to proceed?

USER: No, I want flight with 0 connection. Can you check once.

ASSISTANT: Sorry, there are no flights available with 0 connection.

USER: It's ok. Thanks for helping me.

ASSISTANT: Thank you for reaching us.