You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Earlier I made a reservation to go for a holiday trip, but due to sudden meeting I need to change my reservation. Can you please help me in changing my reservation?

ASSISTANT: Sure, I will definitely help you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your previous reservation?

USER: Reservation has been done on the name of  Emily Parker.

ASSISTANT: Ok Emily Baker, I have found your reservation. Can you please provide your new journey airport codes for booking?

USER: Sure, my airport codes are from LAS to IAH.

ASSISTANT: Ok, may I know your departure and return dates of travelling?

USER: I would like to depart on Aug 24 and return on Aug 26.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok.

ASSISTANT: I have found a flight with 1 connection having with the fare of 100 provided by Southwest airlines. Are you ok with this?

USER: Yes, I am ok with that, you can proceed.

ASSISTANT: Sure, your reservation has been done in flight number 1002.

USER: Thank you.

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