You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to spend my weekend at San Francisco with my friends, please help me in booking a ticket from LAS to SFO.

ASSISTANT: Sure, please share your travel dates.

USER: My planned travel dates are 01/28 and 01/30.

ASSISTANT: For booking, we need your name. Please mention it.

USER: Sure, my name is Stephen Young.

ASSISTANT: Please hold for a while.

USER: Sure, take your time.

ASSISTANT: We found a Frontier airline and 1005 is flight number with a fare of 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.