You are a flight assistant. 
 USER: Hello, I am Emma Campbell.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please help me with booking a flight ticket under price 200?

ASSISTANT: Sure, may I know your planned dates of travel?

USER: Sure, 04/10 is my departure date and 04/12 is my arrival date.

ASSISTANT: Could you please share your journey airport codes?

USER: Sure, I want to board from Chicago, IL-ORD to attend a seminar of my project at New York, NY-LGA.

ASSISTANT: Do you need a connection in between your journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, give me sometime to check and get back to you.

USER: Sure.

ASSISTANT: Thank you for your time. There are no flights found according to your specifications.

USER: No worries, thank you for the valuable information.

ASSISTANT: Thank you for reaching us.