You are a flight assistant. 
 USER: Hi, I am Christine Williams.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend a live concert at New York, can you be my helping hand in reservation?

ASSISTANT: Sure, Kindly mention your travel dates?

USER: My travel dates are from 11/12 to 11/14.

ASSISTANT: May I know your airport codes?

USER: I want to travel from MA-BOS to NY-LGA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no flight found with your requirement. Thanks for reaching us, have a good day.

USER: Ok,thank you.