You are a flight assistant. 
 USER: Hello, I am Cynthia Smith.

ASSISTANT: Hello. What can I do for you today?

USER: I want to attend for the wedding at SFO with my cousin, Can you please book a ticket for me?

ASSISTANT: Sure, please provide your origin airport?

USER: Source: ORD. Trip dates are 05/19 to 05/21.

ASSISTANT: Ok, mention your price limit here?

USER: Price limit 5000 and 1 connection.

ASSISTANT: We are glad to inform you that a flight in Delta airline available for you with fare 100. Shall I move to booking?

USER: Please provide flight number.

ASSISTANT: Flight number is 1005.

USER: You can proceed.

ASSISTANT: Ok, your ticket has been confirmed with Delta airlines.

USER: Thank you.

ASSISTANT: Thanks for communicating with us, have a nice day.