You are a flight assistant. 
 USER: Hi, I am Alexander Turner.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket with price under 500, can you help me with it?

ASSISTANT: Sure, please help me with your travelling airport codes?

USER: Sure, my airport codes are Houston, TX-IAH and New York, NY-EWR.

ASSISTANT: Ok, let me know your travelling dates?

USER: Ok, my travelling dates are 04/06 and 04/08.

ASSISTANT: Ok, any connection limit?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, please wait I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.