You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to do some changes in my existing reservation. Can you help me for that?

ASSISTANT: Sure, may I know your name?

USER: My name is Eric Evans.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure, I will wait for your response.

ASSISTANT: I found your reservation, please provide your itinerary dates.

USER: My travelling dates are Nov 21 and Nov 23.

ASSISTANT: May I know your genesis and terminus airport codes?

USER: My travelling airport codes are DEN and PHL.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: JetBlue airlines with flight 1000 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is confirmed Eric Evans. Flight departs at 11:00 and arrives at 3:00.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.