You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to book a ticket from PHL to EWR, can you please help me out?

ASSISTANT: Sure, I will help you with booking. Please share me when you planned to travel?

USER: I am travelling on these dates Feb 18th and 20th.

ASSISTANT: Do you prefer a connecting flight?

USER: I need single connected flight.

ASSISTANT: Is there any other requirement related to booking?

USER: I don't have any other preferences.

ASSISTANT: May I know your good name?

USER: Ruth Edwards here.

ASSISTANT: Thank you for your details, sorry there is no flight found on your given journey data.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for visiting us, we hope see you again.