You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Kevin Thomas.

ASSISTANT: How can I provide assistance to you?

USER: Can you please reserve me a flight ticket on 02/20?

ASSISTANT: Sure, help me with your airport codes?

USER: My airport codes are DTW - PHL.

ASSISTANT: When you want to return?

USER: I would like to return 02/22.

ASSISTANT: There is a flight from SouthWest airline with airfare 200 and flight number 1028. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.