You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket from Boston, BOS to Philadelphia, PHL?

ASSISTANT: Sure, when do you want to travel?

USER: My journey dates are from Oct 07 to Oct 09.

ASSISTANT: Ok, Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: I need a lay by in between journey.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Ok, May I know your name?

USER: My name is Nicholas Taylor.

ASSISTANT: Thank you for providing details, we did not find any flights with your given details.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.