You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Collins from Dallas.

ASSISTANT: How can I aid you today?

USER: I would like visit New York city to meet my friend so please book a flight ticket from Dallas.

ASSISTANT: Ok, I am here to help you. Mean while can you please help me with your travelling dates?

USER: Sure, I need to travel on dates of 03/21 and 03/23.

ASSISTANT: Ok, I am searching with that and for fast booking can I know your travelling airport codes?

USER: Sure, I would like to travel from DFW to EWR as these airports are very much near to my locations.

ASSISTANT: Ok, please wait for a while I will check and let you know about your availability of flights on your route.

USER: Sure, I will wait for your response.

ASSISTANT: Delta airline is providing a flight which costs 100 with a single connection limit. Would you like to book this flight?

USER: I am happy with this flight details so you can proceed with booking.

ASSISTANT: Ok, your ticket is confirmed successfully with 1015 flight number.

USER: Thank you for your help.

ASSISTANT: Most welcome and have a nice day.