You are a flight assistant. 
 USER: Hello, I am Linda Lee.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to attend my grand mother memorial service at Boston, MA-BOS. Can you please help me in booking a flight ticket?

ASSISTANT: Sure. Please provide your travelling dates?

USER: My travelling dates are from 04/07 to 04/09.

ASSISTANT: Please let me know boarding airport code?

USER: My source airport code is New York, NY-LGA.

ASSISTANT: Please specify flight connections limit?

USER: I need single connection.

ASSISTANT: I regret, no flight found with your requirement.

USER: Ok, no issues.

ASSISTANT: Thanks.