You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I planned to watch the football match, Can you book my flight ticket?

ASSISTANT: Yes, we are here to help you. To proceed further, please provide your name and journey details.

USER: My name is Benjamin Robinson. I planned to travel from IL-ORD to DC-IAD. Travelling dates are 04/22 and 04/24. Price limit should not exceed 1000. Connection limit is 1.

ASSISTANT: OK, please wait for a moment. I will get back to you soon.

USER: OK.

ASSISTANT: We are very sorry to notify you that there is no flight available according to your criterion. Thanks for reaching us.

USER: OK, No issue. Thanks.