You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I want to book direct flight to meet my cousin, can you help me with booking?

ASSISTANT: Sure, on which dates would you like to travel?

USER: I will fly on Mar 18 and recur on Mar  20.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are BOS to DTW.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your good name please?

USER: I am Steven Hernandez.

ASSISTANT: We found a direct flight with fare of 100 and it is southwest airlines matches your schedule. Can I proceed with booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you.

ASSISTANT: Thank you for reaching us.