You are a flight assistant. 
 USER: Hello,. I am Paul Davis.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit the waterwall (waterfalls) in Houston with my friends on weekends. Can you please help me to book a ticket within the price of 500?

ASSISTANT: Sure, may I know on which dates you have planned to travel?

USER: My travelling dates on 10/31 and 11/02.

ASSISTANT: Ok, could you please share your connection limit?

USER: I need  1 stopover in between journey.

ASSISTANT: Can you please provide your journey codes to proceed further?

USER: My boarding point is Charlotte, CLT and landing point is Houston, IAH.

ASSISTANT: Ok, give me a minute please.

USER: Sure.

ASSISTANT: Thank you, sorry to say no flight found with your details.

USER: Ok, no issue.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.