You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Michelle Martinez. I would like to travel to visit ORD to see the Millennium Park, can you make a flight reservation for me?

ASSISTANT: Ok, may I know your preferable dates to get a flight?

USER: My preferable dates are 06/07 and 06/09.

ASSISTANT: Ok, may I know your current location, which you want to take a flight?

USER: I am currently staying in ATL.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: May I know your price limit?

USER: Price limit is 200.

ASSISTANT: Thanks for your response, there is no flight for you with your preferences.

USER: That's fine, thanks for your help and information.

ASSISTANT: Thanks for contacting us.