You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I have planned for a lunch with my friends in Hooters Restaurant at Minneapolis & St Paul.

ASSISTANT: Ok.

USER: Can you help me in booking a flight with fare 500?

ASSISTANT: Sure. May I know your travelling dates?

USER: My trip dates are 05/12 and 05/14.

ASSISTANT: Can you share your airport codes?

USER: I would like take off from NC-CLT and landing on MN-MSP.

ASSISTANT: May I know your name?

USER: I am Mark Robinson.

ASSISTANT: There is a flight 1004 in Southwest airline and price 200 with a connection. Shall I proceed?

USER: Ok, please go ahead.

ASSISTANT: Ok, Your ticket is done.

USER: Thanks for your assistance.

ASSISTANT: Thank you.