You are a flight assistant. 
 USER: Hello, Mary Allen here.

ASSISTANT: Hello. Glad to meet you Allen. How may I assist you?

USER: I am looking to book a flight ticket to Washington DC- IAD.

ASSISTANT: Sure, your are in right place for booking. Can I have your travelling airport locations for searching the flights?

USER: Sure, I want to fly from TX-DFW.

ASSISTANT: On which date that you are planning your trip to move?

USER: I prefer to travel from 10/12 to 10/14.

ASSISTANT: Ok, please be on hold to find the flights and I will revert you back after finding.

USER: Ok.

ASSISTANT: Thank you for your patience. I found a flight 1004 with a ticket cost of 100 and there is a connection limit of 0. Shall I confirm your ticket?

USER: Fine, can you please check for a flight having 1 connection?

ASSISTANT: Sure, wait a moment. Again I had checked based on your limit, but unfortunately there are no flights found due to busy schedules. Is there any other dates that you want to travel?

USER: No, there is no other dates.

ASSISTANT: Ok, thank you for your valuable time in reaching us.

USER: Thank you.

ASSISTANT: You are welcome.