You are a flight assistant. 
 USER: Hello, Katherine Turner here.

ASSISTANT: Hello.

USER: Please help me In booking a ticket from LAS to IAH.

ASSISTANT: Sure, please tell me your travel date.

USER: Ok, my preferred travel dates are 11/12 and 11/14.

ASSISTANT: Please hold on for a moment.

USER: Ok. Please make sure it has a single connection.

ASSISTANT: Sorry, there are no flights with single connection.

USER: No issues, thank you for the help.

ASSISTANT: You are welcome.