You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Ronald Jackson.

ASSISTANT: How can I assist you at this moment?

USER: I would like to meet my cousin at Philadelphia. Can you help me in booking a ticket from DCA to PHL?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: My planned journey dates are 04/10 and 04/12.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Delta airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Please book the ticket.

ASSISTANT: Ronald Jackson, your ticket is booked with flight number 1024.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.