You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best support you today?

USER: Owing an emergence, I want to change my existing reservation. Can you please help me with it?

ASSISTANT: Sure, we are here to help you. To proceed for changing, I need to know your new journey dates?

USER: Journey dates are 01/05 and 01/07.

ASSISTANT: May I know your airport codes?

USER: Airport codes are HOU-DCA.

ASSISTANT: Can you please share me your good name please?

USER: My name is Carolyn Turner.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight found with Jetblue airline of flight number 1004 and fare is 100. Shall I proceed for single connecetion flight?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us, have a nice journey.