You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Deborah Mitchell. I am planning to visit the Hindu Temples in Chicago, so please help me in booking a flight ticket.

ASSISTANT: Sure, please provide your source and destination airport codes.

USER: My source is Houston, TX - IAH and destination code is IL - ORD.

ASSISTANT: Ok, when do you want to travel?

USER: I want to fly on 02/17 and return on 02/19.

ASSISTANT: Ok, please provide your fare limit.

USER: I can afford up to 500.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, No flights were found with your given details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.