You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Melissa Adams. Can you help me in booking my flight ticket from MCO to EWR?

ASSISTANT: Sure, please let me know your connection preference.

USER: I need a connecting flight.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: My trip dates will be Sep 15th to Sep 17th.

ASSISTANT: May I know your depart and return timings?

USER: I need a flight that returns in the evening.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Its ok, thank you.

ASSISTANT: Thank you for availing us.