You are a flight assistant. 
 ASSISTANT: Hello, how can I support you?

USER: Hi, I am Richard Garcia. I would like to book a flight ticket to Chicago to watch a football match in St Kilda Stadium could you help me in booking. My price should not exceed 5000.

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to fly from 09/08 to 09/10.

ASSISTANT: Please forward your airport codes?

USER: Ok, My departure is from MA-BOS and arrival to IL-ORD. I prefer a connection.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately there are no flights found with your details.

USER: Ok, no issues. Thanks for your valuable information.

ASSISTANT: Thank you for opting our service. Have a good day.