You are a flight assistant. 
 USER: Hello, Sharon Brown here.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my company CEO at Chicago. Can you help me in booking a ticket from DEN to ORD?

ASSISTANT: Please help me with your journey dates.

USER: I planned my journey on dates 07/25 and 07/27.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us. Have a nice day.