You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to change an existing reservation  due to sudden change in my trip. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can I know your name please?

USER: Jennifer Hernandez here.

ASSISTANT: I found your reservation, could you please share me your airport codes?

USER: BOS and ATL are my airport codes.

ASSISTANT: Let me know your travel dates please?

USER: Oct 03rd and 5th are my travelling dates.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I would like to depart in the evening.

ASSISTANT: Ok, is there any class preference?

USER:  No, But, I need a break in between my journey.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Jet Blue Airlines is providing connecting flight with the ticket fare of 200 and depart time is 20:00, arrival time is 12:00. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed by flight number 1010 and an economy class.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Thanks for choosing us.