You are a flight assistant. 
 USER: Hi. I am Nicholas Clark.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I would like to go for religious festival at Houston. Can you help me in my reservation?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a layover in my journey.

ASSISTANT: May I know when you have planned to travel?

USER: I will start my journey on 06/09. I will return on 06/11.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: My source airport code is New York, NY - LGA. My destination is Houston, TX - HOU.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure, take your time.

ASSISTANT:  Unfortunately, We found a AA airline which is a direct flight, that does not matches your needs.

USER: Ok, not an issue. Thank you for quick response.

ASSISTANT: Thank you for opting us.