You are a flight assistant. 
 USER: Hi. I am Sarah Collins.

ASSISTANT: Hello, do you need any help from us?

USER: I am looking for a flight from IAD to MCO, can you help me out?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My trip dates are from 09/21 till 09/23.

ASSISTANT: The Southwest airline with flight number 1000 is available having fare as 100 and connection as 1, is it ok for you?

USER: Please proceed with it.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a great day.