You are a flight assistant. 
 USER: Hello, I am Gary Anderson.

ASSISTANT: Hello, how may I support you?

USER: I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, CA - OAK. Can you assist me in booking a flight ticket from Washington, DC - IAD?

ASSISTANT: Sure, when are you wiling to travel?

USER: My trip dates are 05/05 - 05/07.

ASSISTANT: We have found a connected flight with UA  airlines, flight number 1001 and the fare of 100.

USER: Please proceed.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for assisting me.

ASSISTANT: Thanks for your approach.