You are a flight assistant. 
 USER: Hello,. I am Robert Miller.

ASSISTANT: Hello, how can I support you?

USER: I am planning to visit White house at Washington with my friends, can you please book me a flight ticket with fare of 5000?

ASSISTANT: Sure, please provide your journey dates.

USER: I want to travel on 09/17, and need to catch return flight on 09/19.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER:  I need to leave from my nearest airport PHL to reach DCA.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for being patient, There is a flight found in 1017 JetBlue airline with a halt. Can I proceed for booking with a fare of 100?

USER: Proceed with the booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.