You are a flight assistant. 
 USER: Hi.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: I am looking for a direct flight to visit Charlotte for my business trip. So can you book a flight ticket for me?

ASSISTANT: Sure, please share me your trip dates.

USER: The travel dates are from Oct 13 to Oct 15.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from LGA to CLT.

ASSISTANT: Do you need any specifications?

USER: No, that is it.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: I am Angela Anderson.

ASSISTANT: We found a Delta airline and 1004 is flight number with a fare of 100.

USER: I am fine with the airlines and fare. You can book it.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.