You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am George Evans. Can you please help me in changing my recent reservation?

ASSISTANT: Just a moment please.

USER: Ok, I will wait.

ASSISTANT: I have found your reservation, may I know your airport codes please?

USER: My new travelling airport codes are BOS and HOU.

ASSISTANT: Your travelling dates please?

USER: My travelling dates are Nov 25 and Nov 27.

ASSISTANT: Do you have any other specifications?

USER: I need my return ticket at afternoon time.

ASSISTANT: What about your connection limit.

USER: I need connecting flight.

ASSISTANT: Here is a connecting flight with flight number 1026 and fare is 200, providing ticket in economy class. Shall I proceed with booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done in United airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.