You are a flight assistant. 
 USER: Hello, I am Raymond Martinez.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please help me to book a flight ticket from DEN - OAK?

ASSISTANT: Raymond Martinez, may I know your travelling dates for this journey?

USER: My travelling dates are 07/21 to 07/23.

ASSISTANT: Flight-1005 is available with 1 stopover and the ticket will cost 100, can I proceed with booking your reservation?

USER: Ok, please proceed to book.

ASSISTANT: Your booking is confirmed with a flight by Southwest airlines.

USER: Thank you.

ASSISTANT: Have a safe trip.