You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Anthony Williams here. I would like to participate in motor cycle rally at Boston, BOS from ORD, please help me with booking a ticket?

ASSISTANT: Sure, we are here to help you. Can you provide me your travelling dates?

USER: I want to fly on 09/20 to 09/22.

ASSISTANT: Do you need any stop overs in between your journey?

USER: I need a stop over in between my journey.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no flights found on your requested details.

USER: Fine, thanks for the information.

ASSISTANT: Thanks for approaching us.