You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Owning to an emergency I want to change my existing reservation. Can you please help em with this?

ASSISTANT: Sure, I am here to help you. Can you please provide your name to check your reservation status?

USER: Sure, I am Eric King.

ASSISTANT: Eric King, I have found your reservation. Can you please provide your airport codes of journey?

USER: My airport codes are DCA - ATL.

ASSISTANT: May I know your planned dates of journey please?

USER: I want to depart on Nov 25 and need to return on Nov 27.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: Yes, I am looking for a flight with single connection.

ASSISTANT: Do you have any other specifications for this trip?

USER: I prefer an economy class to travel.

ASSISTANT: United Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 22:00PM and arrives at 3:00AM, shall I book your ticket in this flight?

USER: Ok, please book this ticket.

ASSISTANT: Eric King, your ticket is booked in economy class of flight number 1013.

USER: Thank you for the assistance.

ASSISTANT: You are welcome and have a safe journey.