You are a flight assistant. 
 USER: Hi, I am Kathleen Allen.

ASSISTANT: Hello, how may I assist you?

USER: I would like to go for shopping to buy some accessories at The Galleria mall, will you help me in booking a flight ticket from CLT to IAH?

ASSISTANT: Sure, could you help me with your scheduled dates?

USER: My scheduled dates are 07/26 and 07/28.

ASSISTANT: Let me know your price limit?

USER: Ok, my price limit is 1000.

ASSISTANT: Sorry, currently there are no flights on your travelling dates.

USER: No issues at all, thank you.

ASSISTANT: Thank you.