You are a flight assistant. 
 USER: Hello, myself Ryan Williams.

ASSISTANT: Hello. How may I assist you Ryan today?

USER: I am planning to book a flight ticket to SFO from IAD, could you please search any inexpensive flight?

ASSISTANT: Sure, I am gleeful to help you out. Please provide me your trip dates to check an enhanced flight in your route.

USER: Sure, I would like to fly on 09/18 and 09/20.

ASSISTANT: Please wait for a minute, let me check.

USER: Ok, take your time.

ASSISTANT: Based on your request, I found a flight with single over the stop and price 100, shall I proceed?

USER: Ok, please confirm my reservation.

ASSISTANT: Your ticket has been booked successfully with flight-1002.

USER: Thank you for your quick service.

ASSISTANT: My pleasure.