You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Ashley Evans here, can you aid me to book a ticket ?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: I am planning to leave DFW to MSP on Dec 30 and return on Jan 1 respectively.

ASSISTANT: Let me know your departure time and arrival time.

USER: I am comfortable to travel at any time.

ASSISTANT: Do you have any specification?

USER: Make sure that I am looking for direct flight.

ASSISTANT: Please wait a moment.

USER: Take your time.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.