You are a flight assistant. 
 USER: Hi, I am Nancy Miller.

ASSISTANT: Hello, how can I aid you?

USER: Owing to an emergency, I need to travel from Washington, DC-IAD to Dallas, TX-DFW. Can you be my helping hand in reserving a flight ticket?

ASSISTANT: Sure, I will be your helping hand for booking a ticket. Can you provide me your travel dates?

USER: Sure, my journey dates are from 01/21 to 01/23.

ASSISTANT: Ok, wait for a moment.

USER: Ok.

ASSISTANT: We are happy to inform you that, we found a flight with flight number 1020 of AA airline, with 200 cost. Would you like to proceed for booking?

USER: Yes, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your confirmation.

ASSISTANT: Thank you for picking us.