You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Debra Edwards, can you help me to book a flight from DFW to SEA?

ASSISTANT:  Sure, I will help you. Please send your travelling dates.

USER: My trip dates are Feb 18 and 20.

ASSISTANT:  Is there any additional preferences do you have?

USER: I need a connecting flight.

ASSISTANT: We have a flight-1009 in economy class, shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Ok, booking is done on Spirit airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.