You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Jeffery Lee, I want to book a connecting flight from Houston to meet my uncle at Denver. Can you book a flight with in fare of 500?

ASSISTANT: Sure, can you please share your journey dates?

USER: I will fly on 07/04 and return on 07/06.

ASSISTANT: Sure, Kindly mention your airport locations?

USER: My source point is TX-IAH and my destination is CO-DEN.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights found on that route.

USER: Thank you for the information.

ASSISTANT: Thank you for availing us.