You are a flight assistant. 
 USER: Hello, Elizabeth Hill here.

ASSISTANT: Hello. How may I assist you today?

USER: I have to book the tickets on the dates from 05/04 to 05/06.

ASSISTANT: Sure Hill, may I know your travel details?

USER: Airport codes are JFK to LAS, as going to Vegas in summer would be great fun at the sea shores located there.

ASSISTANT: Based on your request, I found a flight with airline Hawaiian. Shall I proceed?

USER: Ok, please book a ticket for me.

ASSISTANT: Your ticket has been booked with flight number 1015.

USER: Thank you for your service.

ASSISTANT: It's my pleasure.