You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: My name is Ryan King, I want to book a flight ticket to attend LGBT festival at EWR, can you help me with booking a connecting flight?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are Apr 10 and Apr 12.

ASSISTANT: From where you want to start your journey?

USER: My source airport code is PHX.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: My depart time is evening.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.