You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Please tell me, how may I help you?

USER: Is there any flight with 1 connection limit to Washington IAD?

ASSISTANT: Let me check, please help me with your travelling dates?

USER: I am planning it from 07/30 to 08/01.

ASSISTANT: From where you are preferable to start your journey?

USER: My nearest airport code is DTW.

ASSISTANT: May I know your name, please?

USER: My name is William Martin.

ASSISTANT: Sorry, there is no flight with 1 connection limit.

USER: It's ok. I will find any other alternatives.

ASSISTANT: Ok. Sorry for inconvenience.

USER: Thank you for your information.

ASSISTANT: You are welcome.