You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Parker.

ASSISTANT: How can I assist you today?

USER: I am a doctor and I have to do a surgery in my new hospital, so can you please find a flight and book the ticket from DCA to LAS locations?

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

USER: Thank you and my planned travel dates are 08/16 and I will catch the return flight on 08/18.

ASSISTANT: Let me check for the availability of flight.

USER: Sure,.

ASSISTANT: Parker, 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: Yes, please go ahead and confirm my flight ticket booking.

ASSISTANT: Your booking is confirmed with 1016 flight number.

USER: Thank you for your enormous help in my flight ticket booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.