You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to change my existing reservation due to sudden postpone of my trip dates. Can you help me in doing that?

ASSISTANT: Sure, may I know your name please?

USER: I am Nancy Rodriguez.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation with your given name, please share your new journey dates.

USER: I will fly on May 17 and recur on May 19.

ASSISTANT: May I know your source and destination airport codes?

USER: My source and destination airport codes are LAX and SEA.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: We found a Delta airline, flight number: 1008, price: 100 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.