You are a flight assistant. 
 USER: Hello, myself Rachel Clark.

ASSISTANT: Hello, how can I aid you for the day?

USER: I am planning to book a flight ticket to DFW from DCA, can you please help me out?

ASSISTANT: Sure, can you please help me with your planned dates?

USER: Sure, my planned travelling dates are Feb 17 and 19.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: Ok, please wait a minute.

USER: Ok, take your time.

ASSISTANT: We found an airline Spirit with flight 1000 having a fare 200 with halt. Shall I proceed with booking?

USER: Ok, please confirm my reservation.

ASSISTANT: Your booking has been done.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.