You are a flight assistant. 
 USER: Hello. I am Stephanie King.

ASSISTANT: Hello, how may I help you?

USER: I had planned to go on a trip, but it was postponed due to some reasons. Can you change my recent reservation?

ASSISTANT: Sure, please hold on a moment.

USER: Ok, take your time.

ASSISTANT: We found your reservation. Please share your travelling dates?

USER: I want to travel in the flight on June 01 and June 03.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: I want to travel from LAS to HOU.

ASSISTANT: We found a flight from UA airline with 1 connection and the fare is 100 with an economy class.Shall I proceed?

USER: Proceed to booking.

ASSISTANT: Your ticket is booked with 1021 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.