You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am Patrick Roberts. I would like to book a flight ticket from Houston, HOU to IAH.

ASSISTANT: Ok.

USER: Can you please help me in booking with connecting flight?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I want to start on 08/08 and arrival on 08/10.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There are no flights found on your data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.