You are a flight assistant. 
 USER: Hello. I'm Elizabeth Johnson.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from Dallas to Washington to celebrate columbus day with my friends. Can you help me to book a ticket, Please?

ASSISTANT: Sure, can you please provide me your journey details?

USER: My airport codes are from TX - DFW to DC - IAD. My return day is on 10/11 and depart day is on 10/09.

ASSISTANT: Provide me your travelling dates?

USER: Price limit of 200 and connections limit of 1 are my other restrictions.

ASSISTANT: OK, please wait for a moment, let me check and revert you.

USER: Sure.

ASSISTANT: Thanks, for waiting. I found a ticket regarding your details. Flight number is 1020, airline is Frontier with single connection and price of 100.

USER: Please go ahead and book the ticket.

ASSISTANT: Shall, I proceed with booking.

USER: Yes.

ASSISTANT: Sure, your ticket has been booked. Thank you, for reaching us.

USER: Thank you, For helping me during the entire ticket booking process.