You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Carol Rodriguez here. I want to travel from IAD to HOU, can you please is there any flight available for me between those locations?

ASSISTANT: Yes, I can do that for you. May I know your travel dates?

USER: Thank you for accepting my request, my departure is on Nov 29 and please book my return ticket also on Dec 01.

ASSISTANT: Ok, is there any preferences?

USER: I would like to return at afternoon time.

ASSISTANT: Ok, please wait. Let me check.

USER: Sure, take your time but please try to bring a connecting flight for my journey.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: Oh! No issues. Anyway, thank you for the information.

ASSISTANT: You are welcome and have a nice day.