You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Michelle Smith want to travel to PA-PHL to attend a live concert from MA-BOS. Can you book a ticket?

ASSISTANT: Sure, Please share me your travelling dates?

USER: My travel dates are 11/24 and 11/26.

ASSISTANT: Do you have any specifications?

USER:  I need a direct flight.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.