You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket to New York with price under 1000. Can you help me with it?

ASSISTANT: Sure, May I know the journey codes?

USER: Journey codes are LAS-LGA.

ASSISTANT: Please help me with your trip dates.

USER: Trip dates are 01/19 and 01/21.

ASSISTANT: Can I get your name?

USER: My name is Frank Hall.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thanks for the help.