You are a flight assistant. 
 USER: Hello, I am Angela Davis.

ASSISTANT: Hello Angela Davis, how can I provide assistance to you?

USER: I want to attend my nephew's birthday party at Chicago. Can you please help me by booking with direct flight?

ASSISTANT: Ok, I can help you as per your request. How much you can afford for your ticket?

USER: I can afford up to 1000 only.

ASSISTANT: Ok, kindly mention dates on which you want to travel?

USER: I would like to start on 05/22 and to return on third day that is on  05/24.

ASSISTANT: Ok, may I know your boarding point?

USER: My boarding point is from Charlotte, NC  - CLT.

ASSISTANT: Kindly mention your destination airport code?

USER: My destination code is Chicago, IL - ORD.

ASSISTANT: Thanks for the kind information, please wait a while. I will revert you with flight details.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting. Sorry for the inconvenience caused, currently no direct flights are available at that locations.

USER: That alright, not a problem.

ASSISTANT: Thanks for opting us, hope to serve you better next time.

USER: Thank you for your information.