You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: Please book a flight from Houston, TX-HOU to Houston, TX-IAH.

ASSISTANT: Ok, may I know your travel dates?

USER: Travel dates are from 07/27 to 07/29.

ASSISTANT: Do you have any connection limit?

USER: Connections limit 1.

ASSISTANT: Thank you. Let me check the availability of flight and get back to you.

USER: Sure.

ASSISTANT: Thanks for being patient. There are no flights available at this moment matching your credentials.

USER: I am Amanda Thomas. Thanks for the help.