You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: My name is William White, can you help me to book a flight ticket for the dates June 3rd and June 5th respectively?

ASSISTANT: Sure, we are rapturous to help you. Can you share me your depart time and arrival time?

USER: Ok, please book a ticket for the flight which return trip timing is during afternoon.

ASSISTANT: Where you need to catch the flight and land?

USER: Ok, please book from the airport EWR to DCA.

ASSISTANT: Do you need any break in your journey?

USER: Ok, please book a connecting flight.

ASSISTANT: Is there any other preferences for you?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available with your specifications.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us, have a good day.