You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi, how may I help you?

USER: I am planning to go for my sister's engagement could you find a flight ticket for me?

ASSISTANT: Sure, I can help you. Before proceeding can I know your good name?

USER: Yes, I am Patricia Lee.

ASSISTANT: Ok Patrica, could you please provide your details?

USER: Sure, my city codes are OAK to LAS.

ASSISTANT: Ok, can you please confirm your preferable dates?

USER: Ok, my travelling dates are 04/30 to 05/02.

ASSISTANT: I found a flight is matched to your criteria.The flight number is 1019 with a fare of 200. Shall I book your ticket?

USER: Yes, but I want 0 connection limit.

ASSISTANT: Sorry Patricia, based on your requested dates we cannot provide you a 0 connecting flight.

USER: Ok, thank you for your information.

ASSISTANT: Ok, thank you for contacting us. Have a great day.