You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Catherine Adams. I would like to visit White Rock Lake with my family, please help me in booking a ticket.

ASSISTANT: Sure Adams, may I know your journey dates please?

USER: My journey dates are from 12/07 to 12/09.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are from IAD to DFW.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Thank you for your patience, I found a flight with Southwest airlines available with price 100. Shall I book the ticket for you?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a good day.