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

ASSISTANT: Hello, how may I assist you today?

USER: As my budget is low, I need a flight with fare 200. Can you book a ticket with 1 connection?

ASSISTANT: Sure, on what dates you want to travel?

USER: I will fly on 07/09 to 07/11.

ASSISTANT: Please share your airport codes?

USER: My source and destination airport codes are OAK to CLT.

ASSISTANT: We are happy to inform that in Delta airline, 1022 flight number we found a ticket for you.

USER: You can book it.

ASSISTANT: Shall I proceed for booking with fare of 100? With one connection your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thanks for contacting us.