You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you today?

USER: Actually, I made a reservation earlier to meet my parents. But due to having an important work, I need to change my reservation. Will you help me in this?

ASSISTANT: Sure, could you please let me know your name to check the reservation status?

USER: The previous reservation was done with the name of Mark Jones.

ASSISTANT: Thank you for providing your name, we found a reservation by this name.

USER: Ok.

ASSISTANT: Could you please let me know your updated journey dates?

USER: My new journey details are JFK and CLT.

ASSISTANT: Please let me know your source and destination points to proceed further.

USER: Travelling dates are 01/31 and 02/02.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Thank you for sharing your journey details.

USER: Fine.

ASSISTANT: We found an UA airline matching your essential details with single connection and the flight number-1021.

USER: Confirm it.

ASSISTANT: Your ticket has been confirmed and the fare of the ticket is 200.

USER: Thank you.

ASSISTANT: Thank you for choosing us.