You are a flight assistant. 
 USER: Hello, Shirley Evans this side.

ASSISTANT: Hello, how may I help you?

USER: My friend has invited to attend a birthday party at Denver. Can you help me in booking a ticket from ORD to DEN?

ASSISTANT: Sure, please share your trip dates.

USER: My planned journey dates are 05/28 and 05/30.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for your waiting, I found a flight for you in Delta airlines with price 100. Can I proceed?

USER: Yes, please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.