You are a flight assistant. 
 USER: Hi. I am Rebecca Thompson.

ASSISTANT: Hello, how may I benefit you?

USER: I need to book a flight ticket from BOS to LAX, Can you please help me for booking with fare of 5000?

ASSISTANT: Sure, when are you planning to travel?

USER: I would like to travel on 01/12 to return on 01/14.

ASSISTANT: UA airline with flight number 1018 is going on your way and the fare is 200.

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.