You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: My name is Larry Lopez.

ASSISTANT: How can I assist you today?

USER: Can you please reserve me a ticket with direct flight to attend an emergency surgery?

ASSISTANT: Sure, on what dates you prefer to travel?

USER: My preferable journey dates are 11/14 and 11/16.

ASSISTANT: Can I know your departure and arrival airport codes?

USER: I will leave from Houston, IAH to reach Minneapolis, MSP.

ASSISTANT: Please be on hold for a minute.

USER: Sure.

ASSISTANT: I found a flight with airfare 600 and flight number 1021 from Delta airline. Shall I confirm?

USER: Is it a direct flight?

ASSISTANT: Yes, It is a direct flight.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your kind service.

ASSISTANT: Thanks for reaching us.