You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ashley Williams here.

ASSISTANT: How can I assist you today?

USER: My kids want to visit Denver Zoo, so please book my ticket from OAK to DEN.

ASSISTANT: Sure, can you please share your travel dates?

USER: My itinerary dates are 04/24 and 04/26.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Ashley, there is a flight available with price 100 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: Please book my ticket.

ASSISTANT: Your booking is confirmed with 1008 flight number.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.