You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I need to travel from MSP to HOU, can you help me?

ASSISTANT: Sure, we are mirthful to help you. On which dates would you like me to book a flight ticket for you?

USER: My travel dates are 12/12 and 12/14.

ASSISTANT: Do you need any layovers between your trip?

USER: I need a direct flight.

ASSISTANT: Is there any other specifications required?

USER: Nothing.

ASSISTANT: May I know your name to proceed further?

USER: I am Sarah Robinson.

ASSISTANT: I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.