You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: Can you help me to book a flight from ORD to PHX?

ASSISTANT: Sure, I will help you. Can you please provide me your travel dates?

USER: 10/19 and 10/21 are my travelling dates.

ASSISTANT: Ok, please give me a moment.

USER: Ok. I am Linda Brown. 200 and 1 are my limits.

ASSISTANT: No flights availble as per your requested dates.

USER: Oh! really sad.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your quick response.