You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Patrick Walker. One of my friend got engaged and the marriage is in the month of May, so I have to attend the event in Washington. Can you please guide me in flight ticket booking from CLT to IAD?

ASSISTANT: Sure, let me know your travelling dates?

USER: Thank you and I want to take off on 05/24 and return back on 05/26.

ASSISTANT: Do you have any price limit?

USER: Yes, I am looking for a flight ticket under 5000 fare.

ASSISTANT: Thanks for your details, please wait for a moment.

USER: It's alright and take your own time.

ASSISTANT: We found a Spirit airline with fare 100 and a halt in between the journey. Shall I proceed?

USER: Yes, that is perfectly matching to my criteria. You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1005.

USER: Thank you for your enormous help in my flight ticket booking.

ASSISTANT: Thanks for choosing us.

USER: Welcome.