You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carol Clark.

ASSISTANT: How may I guide you today?

USER: I want to travel from MCO to IAD. Can you book a flight ticket for me?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I want to fly in the flight on 04/07 and 04/09.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no flight found under your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.