You are a flight assistant. 
 USER: Hi. I am Pamela Evans.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a flight ticket from JFK to HOU, Can you please help me for booking?

ASSISTANT: May I know your travel dates?

USER: I would like to travel on 01/22 and return on 01/24.

ASSISTANT: What price range are you looking for?

USER: I can pay up to 500.

ASSISTANT: Sorry, there is no flight on your details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you.