You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Anthony Brown here. Please help me out in booking the ticket from ORD to SEA.

ASSISTANT: Sure, I am glad to help you. Could you please let me know your travel dates?

USER: My trip dates will be Apr 15 to Apr 17.

ASSISTANT: Ok, do you have any class preferences?

USER: I am comfortable with any of the class.

ASSISTANT: Ok, please be on hold for a while.

USER: Ok.

ASSISTANT: There is a flight available with Spirit airlines and the ticket fare is 100 only. Is that ok for you?

USER: Please proceed further.

ASSISTANT: Anthony Brown, your ticket is confirmed and your flight number is 1018.

USER: Thank you.

ASSISTANT: You are welcome and thank you for reaching us.