You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Eric Garcia here. I want to book a flight ticket from LGA to PHL. Can you help me in that?

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you.

ASSISTANT: May I know your trip dates?

USER: My trip dates are Dec 5 to 7.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: I need halt in between journey.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: Ok, not an issue. I will choose alternate way to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.