You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you at this moment?

USER: I want to change my reservation, can you please help me?

ASSISTANT: Sure, I will help you about that. Can you please provide your name to check in our booking list about the active reservation?

USER: My name is Susan Harris.

ASSISTANT: I have found your reservation under your name, can you please provide your modified dates of journey?

USER: My travelling dates are on June 02 and June 04.

ASSISTANT: Can you please let me know your nearest airport codes of journey?

USER: My airport codes are from DCA to IAH.

ASSISTANT: Do you need any connecting flight for your journey?

USER: I need a single connection.

ASSISTANT: Do you have any other requirement for your journey to met with?

USER: No.

ASSISTANT: I have found a connecting flight having a ticket fare of 100 which is provided by Frontier airlines. Shall I proceed with the booking?

USER: You can proceed.

ASSISTANT: I have reserved your flight ticket with the flight 1014 in an economy class.

USER: Thank you.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.