You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Will you please assist me in changing my existing reservation?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can I know your name to check your previous reservation?

USER: I am Elizabeth Thompson.

ASSISTANT: I have found your reservation. Can you please provide your planned dates of journey?

USER: My trip dates are Feb 7 and Feb 9.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I wish to board from IAH to reach MCO.

ASSISTANT: Do you have any connection limit?

USER: I need a flight having single connection.

ASSISTANT: Is there any other specifications do you have?

USER: No.

ASSISTANT: Please be on hold to check the flights.

USER: Sure.

ASSISTANT: I have found a connecting flight having with the fare of 300 provided by Spirit Airlines. Are you ok with this?

USER: Yes, you can reserve it.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1018 in economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a great day.