You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Carol Harris. Actually, I have to attend my friend marriage at BOS, can you help me to book a flight ticket from PHL?

ASSISTANT: Can you please tell me your journey dates?

USER: My travelling dates are 11/04 and 11/06.

ASSISTANT: Can you please tell me your connection limit and price of your flight ticket?

USER: Sure, 200 and 1 are my price and connections limits.

ASSISTANT: Sorry to say, there is no flight available on your dates. Thank you for contacting us.

USER: Oh! that's fine. Thank you for your help.