You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in booking my flight ticket from IAD to MCO?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My trip dates will be Apr 17th to Apr 19th.

ASSISTANT: May I know your name?

USER: I am Raymond Hernandez.

ASSISTANT: Do you have any other specifications?

USER: No, thank you.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Its ok, thank you.

ASSISTANT: Thanks for approaching us.