You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Lewis.

ASSISTANT: How can I assist you today?

USER: I am planning for a round trip, could you please help me with booking a flight ticket from SEA to SEA?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to take off on 04/16 and return on 04/18.

ASSISTANT: Let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: Charles, there is a flight available with price 100 and the connection is 1 with Delta airline. Would you like me to proceed with the booking?

USER: Please confirm the booking.

ASSISTANT: Your booking is confirmed with 1014 flight number.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for contacting us.