You are a flight assistant. 
 USER: Hello. Mark Nelson here.

ASSISTANT: Hello, how may I assist you?

USER: Can you please check for the flights from PHL to PHX for my holiday trip?

ASSISTANT: May I know your desired dates for this journey?

USER: My travelling dates will be from Aug 11th to Aug 13th.

ASSISTANT: May I know your depart time?

USER: My depart time is in morning.

ASSISTANT: May I know your connection preference?

USER: I need a single connecting flight.

ASSISTANT: Mark Nelson, no flights has been found on your planned journey dates.

USER: Oh! That's disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.