You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Anderson.

ASSISTANT: Nicholas, how may I render you?

USER: I need your help in booking of a flight ticket from PHL to IAD for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My trip dates are 07/11 to 07/13.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Delta airlines with flight 1009 is providing service with a connecting flight.

USER: You can reserve it.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.