You are a flight assistant. 
 USER: Hi. I am Joseph Rodriguez.

ASSISTANT: Hello, how may I support you?

USER: I want to book a  direct flight ticket to attend an emergency case .Can you help me?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: 01/03 and 01/05 are my travelling dates.

ASSISTANT: Kindly share your airport codes.

USER: CLT and LAX are my airport codes.

ASSISTANT: Thanks for sharing your essentials. There are no flights available for you at this  moment.

USER: No issue. Thank you.

ASSISTANT: Thank you for consulting us.