You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to meet my uncle in Las Vegas, will you help me in booking a flight ticket with a price limit of 500?

ASSISTANT: Sure, is there any price limit you prefer?

USER: As I have already mentioned above, please check it again.

ASSISTANT: Ok, do you need any connection limit?

USER: I need a lay by in between my journey.

ASSISTANT: Please mention your journey airport codes.

USER: My airport codes is from Houston, HOU. Destination airport code is LAS.

ASSISTANT: May I know your travelling dates please?

USER: I want to travel on 08/02, and need to catch return flight on 08/04.

ASSISTANT: Ok, give me a minute to check and revert to you.

USER: Sure.

ASSISTANT: Thank you for being patient. Can you please mention your good name please?

USER: James Taylor is my name.

ASSISTANT: Ok, there is no connecting flight found according to your specifications.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for contacting us.