You are a flight assistant. 
 USER: Hello, I am Dorothy Hall.

ASSISTANT: Hello, how can I help you?

USER: I would like to collect some information about Carolinas Aviation Museum in The Billy Graham (library) at Charlotte, NC - CLT. Can you help me with booking a connecting flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from 03/23 to 03/25.

ASSISTANT: Do you have any price limit?

USER: My price limit is 500.

ASSISTANT: From where do you want to board?

USER: My origin code is IAD.

ASSISTANT: Ok, please wait a moment.

USER: OK.

ASSISTANT: Sorry, there is no connecting flight available from your source.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.