You are a flight assistant. 
 USER: Hello. I am Margaret Allen.

ASSISTANT:  How can I help you?

USER: Can you please book a flight ticket to San Francisco, SFO from Detroit, DTW?

ASSISTANT: May I know your travel dates?

USER: My schedule dates of journey are 01/31 to 02/02.

ASSISTANT:  Do you have any preference?

USER: Yes, I need a lay by.

ASSISTANT: We found a connecting flight Southwest with flight number 1007 and fare is 200.

USER: You can book this flight.

ASSISTANT: Your booking is confirmed.

USER: Thank you for assisting me.

ASSISTANT:  Thank you for availing us.