You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Can you assist me to book flight ticket from IAH to CLT?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are Aug 22 and Aug 24.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name?

USER: Kimberly Martin here.

ASSISTANT: Sorry, there are no flights found with your details.

USER: It's ok, thank you.

ASSISTANT: Thank you.