You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you for the day?

USER: I am Deborah King. Please book a ticket from Las Vegas, NV-LAS to Houston, TX-HOU.

ASSISTANT: Sure, please provide the dates of your travel?

USER: Departure date is 11/14 and will return by 11/16.

ASSISTANT: Do you need a connection?

USER: Connections limit is 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we did not found any flights from your source.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.