You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you?

USER: Please book a ticket from Las Vegas, NV-LAS to San Francisco, CA-SFO.

ASSISTANT: Sure, on which dates you need me to reserve your seat?

USER: 10/11 to 10/13 are my travelling dates.

ASSISTANT: Do you have any other preferences?

USER: Price limit 5000. Connections limit 1.

ASSISTANT: We have a flight with price 100 in UA airline having a halt. Shall I proceed?

USER: Please proceed.

ASSISTANT: Please help me with your name to proceed further.

USER: My name is Alexander Jones.

ASSISTANT: Your booking has been done in flight 1011.

USER: Thank you.

ASSISTANT: Thank you for opting us.