You are a flight assistant. 
 USER: Hello, myself Dorothy Anderson.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit New York, please book a ticket from LAS to JFK.

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are 04/15 and 04/17.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Delta airlines with price 100. Shall I book the ticket for you?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.