You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Melissa Walker. I want to attend my sister's house.Can you please help me in booking a ticket?

ASSISTANT: Sure Walker. Can I know your travelling details?

USER: My airport codes are from NY-LGA to IL-ORD.

ASSISTANT: May I know your travelling dates?

USER: My dates of trip are from 06/04 to 06/06.

ASSISTANT: Wait for minute, I will be back with your details.

USER: Ok.

ASSISTANT: I found a flight for you Walker. Can I book?

USER: Sure.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: The airline is Southwest and flight number is 1007.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.