You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Edwards.

ASSISTANT: How may I assist you?

USER: I planned to attend for a wedding in DTW, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, please provide me your journey dates.

USER: I prefer to travel on 03/03 and 03/05.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Delta airlines 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.

ASSISTANT: Thank you for contacting us.