You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Patricia Green.

ASSISTANT: Green welcome to Crowd Compute booking agency.

USER:  I am planning to travel from DCA to PHX to attend my sister's wedding, could you please help me with booking a flight ticket with no connections?

ASSISTANT: Sure, on which dates you want to attend your sister's wedding?

USER: The dates of travel are from 05/22 to 05/24.

ASSISTANT: I am really sorry for to tell you, I cannot find any flight with no connections.

USER: That's ok. Thank you for your time.

ASSISTANT: It's my pleasure.