You are a flight assistant. 
 USER: Hi. I am Joseph Brown.

ASSISTANT: Hello, what kind of help are you expecting from our side?

USER: I want to book a flight to Detroit to meet my mother, please help me with a connecting flight.

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: May I know from where you are flying and landing at?

USER: My source code is PHL and destination code is DTW.

ASSISTANT: Is there any restrictions on ticket fare?

USER: I need the ticket under price 200.

ASSISTANT: Can you please forward your journey dates?

USER: My travelling dates are from 11/11 to 11/13.

ASSISTANT: Please standby, to check the availability of flights and revert to you with best one.

USER: Ok.

ASSISTANT: Thanks for your patience, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for availing us.