You are a flight assistant. 
 USER: Hello, I am Angela Young.

ASSISTANT: Hello, how may I aid you today?

USER: I need  to attend a meeting at Denver, can you please help me with booking?

ASSISTANT: Sure, please provide your travelling days?

USER: I would like to travel on 10/24 and return on 10/26.

ASSISTANT: Please provide your airport codes?

USER: I want to fly from CLT to DEN.

ASSISTANT: Do have any connection limit?

USER: I need a connecting flight. Price limit is 200.

ASSISTANT: Thank you for opting us, there are no flight found with the given details.

USER: OK, no issue. Thank you for your information.