You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what help that I can assist you?

USER: Owing to an emergency, I want to change my reservation. Can you help me with that?

ASSISTANT: Sure, I can help you and may I know your name please?

USER: Sure, Robert Walker here.

ASSISTANT: Thank you and there is a reservation found under your name. Can you please provide your regional airport codes?

USER: It's very nice to hear from your side. My airport codes are DCA and LGA.

ASSISTANT: May I know your departure and arrival travel dates?

USER: My departure is in the month of Apr 06 and arrival is in the same month 08.

ASSISTANT: Is there any other preferences?

USER: I need a connecting flight.

ASSISTANT: Thank you for your information, there is a flight 1011 with a 1 stop in United airlines and the fare of the ticket is 100. Is it ok for you to book the ticket?

USER: Yes, you can proceed.

ASSISTANT: I have confirmed your flight ticket booking in an economy class flight.

USER: Thanks for your extreme support.

ASSISTANT: You are welcome and have a happy journey.