You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Can you please help me to find a flight from IAD to BOS for my journey?

ASSISTANT: Sure, May I know the travelling dates?

USER: My journey dates are from Jan 22 to Jan 24.

ASSISTANT: Do you have any connection limit?

USER: I need 1 connection flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Ryan Wright.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Most welcome.