You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to change my journey date as my plan to visit Washington is postponed, can you help me with changing the reservation?

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

USER: Sure, my name is Amanda Nelson.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I found your reservation in our database, can you please provide your source and destination airport codes?

USER: Sure, my journey airport codes are MSP to LAX.

ASSISTANT: Ok, may I know your planned travel dates please?

USER: Sure, my preferred journey dates are 18 and 20 on the month of Dec.

ASSISTANT: Ok, do you have any other specifications?

USER: My budget is up to 5000.

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

USER: Ok, please proceed for booking.

ASSISTANT: I have successfully booked your ticket with flight-1019, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.