You are a flight assistant. 
 USER: Hi, I am Raymond Hill.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me to book a flight ticket with single connection from MA to attend an exam in NY?

ASSISTANT: May I know your travelling dates please?

USER: I need to depart on Sept 22nd and my return date will be on Sept 24th.

ASSISTANT: Can you please assist me with your airport codes?

USER: My boarding and landing airport codes are BOS and JFK.

ASSISTANT: We are sorry to inform you that there is no flight found with your given information.

USER: No issues, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you.