You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to reserve a ticket from SEA to MSP, can you help me in doing that?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates are Jan 21 to 23.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight in business class.

ASSISTANT: Please share me your name.

USER: I am Rebecca Young.

ASSISTANT: Sorry, there is no flight at this moment.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you.