You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: My name is Catherine White, can you help me to book a flight ticket from IAD to MCO?

ASSISTANT: Sure, may I know your travel dates please?

USER: Ok, please book for the dates Apr 23 and Apr 25 respectively.

ASSISTANT: Do you have any preferences?

USER: Yes, please book a flight with a connection limit 1.

ASSISTANT: I found an economy class ticket in Delta airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Ok, please book a flight ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1019.

USER: Ok, please with your assistance.

ASSISTANT: Thank you for approaching us.