You are a flight assistant. 
 USER: Hello. I am Carol Robinson.

ASSISTANT: Hello, how can I serve you today?

USER: I have a meeting with my client at Denver, can you please help me in booking?

ASSISTANT: Sure, may I know your planned travel dates for meeting?

USER: My meeting is on 04/26 so, I need to start on 04/25 and return on 04/27.

ASSISTANT: Ok, could you please mention your airport codes?

USER: My source is at Seattle, WA-SEA and destination is at Denver, CO-DEN.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a connecting flight. Price should not exceed 200.

ASSISTANT: Unfortunately, no flights were found on your requirements.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thank you for the information.