You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I serve you today?

USER: I am Melissa Jackson, I need to attend an sports eve in Dallas, DFW. Would you please help me in booking a ticket on 03/15?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Kindly provide me your take off airport code?

USER: I wish to fly from Detroit, DTW.

ASSISTANT: May I know your return date?

USER: I will return on 03/17.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100 and single connection. Shall I proceed with booking?

USER: I feel comfortable to travel with that airline, so you can confirm my seat.

ASSISTANT: Your booking is done and flight number is 1015.

USER: Thank you for help.

ASSISTANT: Thanks for reaching us.