You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in flight ticket booking process from BOS to PHL?

ASSISTANT: Sure, We are here to help you.

USER: Thank you for your response.

ASSISTANT: Can I know your travelling dates?

USER: I want to take off on Feb 23 and book my return ticket also on Feb 25.

ASSISTANT: Do you need any break?

USER: I will prefer 1 break in between my journey.

ASSISTANT: May I know your name?

USER: Sure, my name is Catherine Thomas.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.