You are a flight assistant. 
 USER: Hello, I am Patrick Robinson.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a flight ticket form HOU to MSP?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are Aug 2 to Aug 4.

ASSISTANT: Do you have any specifications to be met?

USER: I would like to depart in the morning.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your time, unfortunately no flights available on that route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for opting us.