You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I amend you today?

USER: Please book a ticket to Houston, TX-IAH from Austin, TX-AUS for Grand canyon adventure.

ASSISTANT: Sure, we are here to help you. May I know your preferred dates of travel?

USER: My travel dates are from 07/03 to 07/05.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: May I know your good name please.

USER: I am Paul Young.

ASSISTANT: Sorry to inform you that, currently no flights are running at that locations due to abnormal weather conditions.

USER: Thanks.

ASSISTANT: Thank you for connecting with us.