You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Kimberly Wilson.

ASSISTANT: How can I help you Wilson?

USER: I need to attend a sports event in Las Vegas.can you book a ticket from TX - IAH to NV - LAS?

ASSISTANT: Sure, can I know your travel dates please?

USER: I want to depart on 03/11 and return by 03/13. The connection limit is 1.

ASSISTANT: Sure, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Wilson, there are no flights available as per your request. Thank you for reaching us, have a good day.

USER: Ok, that's not a problem. Anyways thank you for your help.