You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to change my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: My name is Eric Williams.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Eric Williams, I found your reservation, can you please help me with your source and destination airport codes please?

USER: My departure airport code is LAX and destination airport code is CLT.

ASSISTANT: Can you please provide your planned travel dates?

USER: I am departing on Apr 27 and return on Apr 29.

ASSISTANT: Do you prefer direct or single connected flight?

USER: I prefer a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I do not have any other specifications.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: AA is providing a flight on that route with ticket fare of 200 and 1 connection, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1007, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.