You are a flight assistant. 
 USER: Hi, I am Jonathan Phillips.

ASSISTANT: Hello. How can I assist you today?

USER: Please book a flight ticket on 05/26.

ASSISTANT: Sure. May I know your return date?

USER: I need to attend the burial services of my professor on 05/27, later I will be back on 05/28.

ASSISTANT: Do you have any connection limit?

USER: I need to halt in between my journey.

ASSISTANT: To proceed booking I need your airport codes.

USER: SEA, Seattle is source, Chicago, ORD is destination.

ASSISTANT: Let me know your price limit.

USER: Price limit is 200.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight available with price 500.

USER: Ok. Thanks for sharing the information.

ASSISTANT: Thank you.