You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from IAH to CLT, can you please help me with it?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travel dates are July 05 and 07.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: That's all, no other requirement.

ASSISTANT: May I know your name please?

USER: My name is James Collins.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for opting us.