You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Joshua Rodriguez here. I am planning to book my ticket from IAD to LAS. Can you help me with booking?

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: My journey dates are Mar 02 and Mar 04.

ASSISTANT: Do you have any other requirements please?

USER: I need a connecting flight in my journey and my depart time should be in the Morning.

ASSISTANT: Sorry Joshua, there is no flight found as per your travelling details.

USER: Not an issue. Thank you for the information.

ASSISTANT: You are welcome.