You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in flight ticket booking process from LAS to IAH?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: Thank you for your response, I want to take off on June 20 and book my return ticket also on June 22.

ASSISTANT: Do you need any break?

USER: Yes, I will prefer 1 break in between my journey.

ASSISTANT: May I know your name?

USER: Sure, my name is Katherine Campbell.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Ok.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.