You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Kevin Hill.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from DEN to IAH, can you help me in booking?

ASSISTANT: Sure, can I know the travel dates please?

USER: Sure, my planned travel dates are Mar 27 and Mar 29.

ASSISTANT: Could you please provide the departure and return time?

USER: There is no particular timings for this journey.

ASSISTANT: Do you have any requirements?

USER: I am looking for a direct flight in a normal-cost Airlines.

ASSISTANT: Ok, wait a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for approaching us.