You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Katherine Lee, I want to meet my father as he is unwell, can you please help me to book my flight ticket from EWR to PHX?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I want to depart on Sept 5th and I will return back on Sept 7th.

ASSISTANT: Do you have any specifications?

USER: No, I only need single connection flight.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: No problem. Thank you for checking.