You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Lewis here.

ASSISTANT: How may I aid you?

USER: I need to reserve my ticket from SEA to MSP. Can you please help me with booking?

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

USER: Ok, my travel dates are Aug 20 and Aug 22.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight in my journey.

ASSISTANT: Do you have any class preferences?

USER: Yes, I would like to book my ticket in business class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.