You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Catherine Hernandez here.

ASSISTANT: How may I assist you now?

USER: I want to attend a Marriage in Detroit. Can you please help me for booking the flight ticket?

ASSISTANT: Catherine Hernandez, may I know your desired dates?

USER: My travelling dates are 08/05 and 08/07.

ASSISTANT: May I know your source location code?

USER: My source airport code is IAD.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need single connecting flight.

ASSISTANT: May I know your depart and return time?

USER: I want to return on morning.

ASSISTANT: Flight-1023 is available for you with Hawaiian airlines with business class. Can I book it for you?

USER: Please proceed.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thanks for helping me.

ASSISTANT: Have a safe journey.