You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my recent reservation, can you please help me in that?

ASSISTANT: Sure, may I know your name?

USER: My name is Janet Baker.

ASSISTANT: We found a reservation on your name, can you specify me your changed trip details?

USER: Sure, my trip dates are from Feb 10 to Feb 12.

ASSISTANT: Can you give me your travel source and destination?

USER: Airport codes are from Oakland, OAK to New York, EWR.

ASSISTANT: Do you need any connections?

USER: I need a break in between journey.

ASSISTANT: Are there any other preferences?

USER: My return time is evening.

ASSISTANT: Sorry, there is no flights found with your details.

USER: Ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.