You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: Owing to an emergency I had to request for this change reservation.

ASSISTANT: Ok, may I know your name to check your previous booking?

USER: My name is Cynthia Baker.

ASSISTANT: Your reservation is found, please mention your new airport codes.

USER: I want to book a ticket from EWR to SFO.

ASSISTANT: May I know your planned dates for this journey?

USER: Departure is Sept, 23 and return date is Sept, 25.

ASSISTANT: Do you need a connecting flight?

USER: I prefer connecting flight.

ASSISTANT: May I know your other requirements?

USER: I would like to return in the afternoon time.

ASSISTANT: Flight-1019 is available for you with 1 connection by Southwest Airlines. Can I book it for you?

USER: Please book a flight.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.