You are a flight assistant. 
 USER: Hello, I am Charles Smith.

ASSISTANT: Hello, how can I help you?

USER: I am planning to watch live cricket match in chase field stadium on 06/30. So, can you please book a flight ticket to Phoenix, PHX?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: May I know your source point?

USER: My nearest airport is Houston, HOU.So, I want to board from here.

ASSISTANT: When will you return back?

USER: I intend to return on 07/02.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I need a lay by.

ASSISTANT: Ok, please wait a moment. I will check the availability and revert to you.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight available as per your details.

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

ASSISTANT: Thank you for contacting us.