You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Donne Green here from Philadelphia.

ASSISTANT: How may I help you?

USER: I would like to visit Fort Selling State Park  once. Can you book me a ticket within price 200?

ASSISTANT: Sure, tell me your travel dates please?

USER: I would start on May 11th and return on 13th.

ASSISTANT: Tell me your airport codes please?

USER: My boarding point is PHL and landing point is EWR.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will.

ASSISTANT: Thanks for your time. I have found Delta airlines which flies with one connection and the fare is only 100.

USER: That's absolutely fine, please go ahead for booking.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: Thanks for your support.

ASSISTANT: Thank you.