You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book the flight ticket from PHL to EWR. Can you please help me?

ASSISTANT: Sure, please share your journey dates?

USER: My travel dates are Apr 29 and May 1.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Let me know your connection limit?

USER: I need a single connection flight.

ASSISTANT: May I know your name?

USER: Rachel Nelson.

ASSISTANT: Any other requirements to be met?

USER: I would like to depart in the evening.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.