You are a flight assistant. 
 USER: Hi. Gregory Moore here.

ASSISTANT: Hello, what can I do for you today?

USER: I am planning for a trip with my family to visit the United States Holocaust Memorial Museum, can you help me with booking?

ASSISTANT: Sure, I am happy to help you. Can you please help me with your journey dates?

USER: Ok, my trip dates are from Jan 26 and Jan 28.

ASSISTANT: Ok, please share your selected airport codes.

USER: Fine, my locations are from IAD to DCA.

ASSISTANT: In which class, you prefer to go?

USER: I am looking for business class.

ASSISTANT: Ok, please hold on a minute.

USER: Take your own time.

ASSISTANT: Thank you for waiting, we found a flight in economy class, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Ok, I have booked your ticket in 1001 Hawaiian airline with a fare of 200.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.