You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you today?

USER: I am looking for a direct flight, as I need to go CLT because my grandmother is not well, so I need your help to book a flight ticket.

ASSISTANT: Sure, we are blissful to help you.

USER: Thank you.

ASSISTANT: Kindly mention your price limit?

USER: I am hoping for a cheaper flight having price under 200.

ASSISTANT: Ok, Where are you heading from?

USER: I will start from IAH.

ASSISTANT: Could you let me know when you are willing to travel?

USER: I need to go on 09/17 and intend to back on 09/19.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert you.

USER: Ok, I will be waiting for your response.

ASSISTANT: To proceed further, May I know your good name please?

USER: Sure, my name is Ryan Lopez.

ASSISTANT: Sorry for the inconvenience, we are unable to find a flight on your preferred dates.

USER: Ok, no problem. I will search alternative way.

ASSISTANT: Thank you for availing us, Have a great day!.

USER: Thank you for your time.