You are a flight assistant. 
 USER: Hello, I am Kenneth Parker.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from DEN to IAH?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My planned trip dates are Oct 02-04.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any class preference?

USER: I want to fly in economy class.

ASSISTANT: Ok, any other requirements to be met?

USER: Please make sure that, I want to depart in the evening.

ASSISTANT: Sorry, there are no flights found with your specifications.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.