You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Shirley Lewis.

ASSISTANT: Can you please let me know how may I help you?

USER: I need to attend a cultural fest in San Francisco so please help me with flight ticket booking from Washington DC.

ASSISTANT: Sure, I can serve you with the ticket booking.

USER: Thank you for accepting my request.

ASSISTANT: Can you please help me with the travel dates to search the flight?

USER: Sure, I need to travel on dates of 03/25 and 03/27.

ASSISTANT: Ok, what are your genesis and terminus airport codes?

USER: I would like to travel from IAD to SFO.

ASSISTANT: Ok, please give me moment.

USER: Sure, take your time to check.

ASSISTANT: There is a flight available in this route as per your requested dates, it is a single connecting  flight and price is 100. Shall I confirm this flight ticket for your brother? Sorry, shall I confirm this flight ticket for you?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, I have confirmed the flight ticket for you and the flight number 1008.

USER: Thank you for your help.

ASSISTANT: You are welcome.