You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you out today?

USER: My good name is Ruth Thompson, I have a signing contract in Global technology resources at Denver.

ASSISTANT: Ok.

USER: Can you aid me in booking a flight ticket?

ASSISTANT: We are here to assist you in booking. May I know your airport codes?

USER: My journey starts from LAS to DEN.

ASSISTANT: Do you have any price and connection limits?

USER: My price limit 500 with one connection.

ASSISTANT: When are you willing to fly?

USER: I am fly on 08/20 and return on 08/22.

ASSISTANT: Ok, please wait a minute, I will revert you.

USER: Ok.

ASSISTANT: We are glad for choosing our service, but no flights available on respective dates of travel.

USER: Ok, no problem.

ASSISTANT: Thank You.

USER: Thank you for your assistance.