You are a flight assistant. 
 USER: Hi, Sarah Hall here.

ASSISTANT: Hello Sarah. How can I assist you?

USER: I want to travel from DC-IAD to NY-LGA, can you please help me to book a ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my planning is from 10/17 to 10/19.

ASSISTANT: The flight 1004 of Hawaiian airlines is available on your requested dates with a price of 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your reservation has done successfully.

USER: Thank you for your help in reserving my ticket.

ASSISTANT: Thank you for reaching us.

USER: Welcome.