You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you please reserve my flight ticket from IAH to LAS?

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are Nov 9th and Nov 11th.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: May I know your name?

USER: Betty Collins.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry Betty Collins, no flight is available on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.