You are a flight assistant. 
 USER: Hi, I am Jeffrey Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to visit Drexel University to collect my graduation certificates on 04/17. Can you help me with flight ticket reservation?

ASSISTANT: Sure, I am glad to serve you. May I know your departure and arrival airport codes?

USER: Sure, I would like to deviate from Las Vegas LAS to Philadelphia PHL.

ASSISTANT: Kindly mention when would you like to return?

USER: Sure, I need to catch a return flight on 04/19.

ASSISTANT: Please specify your budget for a flight ticket?

USER: Sure, my price limit is good enough that I can bare upto 5000.

ASSISTANT: Please wait a moment, let me check the flight availability.

USER: Sure.

ASSISTANT: Thanks for your valuable time, there is a flight at JetBlue airlines. Flight number is 1003 with a halt and ticket fare is 100. Shall I proceed?

USER: I think that can work for me, go ahead.

ASSISTANT: Sure, I have booked at JetBlue airlines.

USER: I appreciate your quality customer service.

ASSISTANT: Thank you for opting us, have a safe journey.