You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please check is there any flight available between IAH and DEN?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: Thank you for considering my request, my boarding is on Mar 05 and please book my return ticket on Mar 07.

ASSISTANT: Can I have your name?

USER: Sure, my name is Samantha Harris.

ASSISTANT: Are you fine with connecting flight?

USER: Yes, it's perfect for me.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: Sorry to say, no flight is available for you as per your requests.

USER: Oh! Sad to hear that. Anyway, I will reach another booking agency. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.