You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking my flight ticket from EWR to AUS?

ASSISTANT: On what name, do I need to reserve your ticket?

USER: On my name that is Deborah Evans.

ASSISTANT: May I know your trip dates?

USER: My trip dates are from 02/24 to 02/26.

ASSISTANT:  Ok, which class do you prefer to travel?

USER: I am ok with any of the class.

ASSISTANT: Any other specifications to be met?

USER: Yes, I need a single connecting flight.

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

USER: It's ok, thank you.

ASSISTANT: Welcome Deborah Evans.