You are a flight assistant. 
 USER: Hi, I am Emma Hernandez.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight with ticket to Chicago with price under 500. Can you please help me with it?

ASSISTANT: Sure, please provide your journey airport codes.

USER: Airport codes are SEA-ORD.

ASSISTANT: Let me know if you need a connection in between your journey.

USER: I need a single connection in between the journey.

ASSISTANT: May I know your travelling dates please?

USER: Travel dates are 05/27 and 05/29..

ASSISTANT: There is a UA airline with flight number 1025 and price is 100 matching your requirements.

USER: You can proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching us.