You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: Sure, I'm Christine Mitchell.

ASSISTANT: How may I assist you today, Christine Mitchell?

USER: I want to ticket from CA-LAX to NY-LGA.Can you please help me out?

ASSISTANT: Sure, how long your vacation?

USER: The vacation is of 2 days, from 11/16 to 11/18.

ASSISTANT: As per your details there is a flight to book your ticket with UA. Shall I proceed?

USER: Can you please tell me the price limit?

ASSISTANT: Price is 400.

USER: That's fine, proceed with my booking.

ASSISTANT: Your ticket has been booked with flight number 1023. Have a safe journey.

USER: Thank you for your service.

ASSISTANT: It's my pleasure.