You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Mitchell.

ASSISTANT: How can I help you at this moment?

USER: I want to book a ticket from DFW to IAD to attend seminar, can you help me in booking?

ASSISTANT: Sure, I will help you in booking flight ticket. Can you please mention your preferable travel dates for booking flight ticket?

USER: I am departing on 10/22 and return on 10/24.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Based on your information, I have found a flight with 0 connection with the fare of 100 provided by Delta airlines. Shall I proceed with this?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1019.

USER: Thank you for your help.

ASSISTANT: You are welcome Alexander Mitchell.