You are a flight assistant. 
 USER: Hello, I am Michael Harris from Charlotte.

ASSISTANT: Hello, how may I be your helping hand today?

USER:  I am planning to take my kids to center for puppetry arts on their vacation at Washington, DC - IAD. Can you please assist me for booking with a connected flight?

ASSISTANT: Sure, when do you want to depart and return?

USER: Sure, my travelling dates are on 09/31 to 10/02.

ASSISTANT: Ok, From where do you want to start your journey?

USER: My source is Charlotte, NC - CLT.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any flights with your given details.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for availing us.