You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Green.

ASSISTANT: Emma, how can I help you today?

USER: I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from IAD to ORD?

ASSISTANT: Can you please help me with your travelling dates?

USER: I would like to take off on 10/25 and return on 10/27.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Here is a flight-1009 with 1 connection limit, costs 100 from Frontier airlines. Shall I proceed?

USER: Please confirm the booking.

ASSISTANT: Emma, your ticket is booked.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for consulting us.