You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Would it be possible to change my reservation to new travel dates?

ASSISTANT: Yes, can you share me your name?

USER: Ok, my name is Emma Lee.

ASSISTANT: I have found reservation on your name. Can you share me your travelling dates?

USER: Ok, my planned dates are from July 21 to 23.

ASSISTANT: Can you share me your nearest airport codes?

USER: Sure, my locations are from DFW to ORD.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.