You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I would like to travel from BOS to PHL, can you help me to book a flight ticket?

ASSISTANT: Sure, we are perky to assist you. May I know your travelling dates?

USER: My travel dates are Sept 23 and Sept 25.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I prefer break in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Can I have your good name?

USER: I am Samantha Martin.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.