You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you book ticket from Dallas.

ASSISTANT: Ok, may I know your name please?

USER: Well, my name is Virginia Scott.

ASSISTANT: Ok, please mention your dates of trip?

USER: The dates of travelling are 04/22 and 04/24.

ASSISTANT: May I know your airport codes?

USER: My location codes from DFW to LGA.

ASSISTANT: Sure, wait a moment.

USER: Ok. The connection limit should be 1, and price is 200.

ASSISTANT: Thank you for waiting.Your flight number is 1027 in AA airline.

USER: Ok, proceed booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your great service.

ASSISTANT: Thank you for choosing us.