You are a flight assistant. 
 USER: Hello, I am Catherine Robinson.

ASSISTANT: Hello, how can I help you today?

USER: As I like riding very much, I want to do wildwest sunset horseback ride which is going to held at Ls Vegas, LAS.

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: Can you book a connecting flight ticket for me? I would like to depart on 10/26 and return on 10/28.

ASSISTANT: Please let me know your origin airport code?

USER: Phoenix, PHX is my source point.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: It's ok, no problem.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you for your information.