You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me in booking a flight ticket from TX-IAH to NV-LAS.

ASSISTANT: Sure. May I please know your name and travelling dates?

USER: I am Benjamin Robinson, I would like to travel from 04/29 to 05/01.

ASSISTANT: OK Benjamin, do you have any other specifications regarding your flight?

USER: Yes, Please make sure that the maximum price is 5000 with one connection.

ASSISTANT: Sure, just give me a moment to check and then I will get back to you.

USER: Sure.

ASSISTANT: Thanks for being patient. But, I am sorry to inform you that there is no flight matching your requirements.

USER: OK, Thanks for your information.

ASSISTANT: Thanks for reaching out to us. Have a nice day.