You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you for your response.

ASSISTANT: Can I know your name to check the reservation status?

USER: Sure, please check the reservation status under the name Carol Martin.

ASSISTANT: Thank you for proving your name, we found a reservation by this name. May I know your planned travelling dates to proceed further?

USER: Oh! I am happy to hear that from you. I will share you all the details. My planned travel dates are Nov 5 and Nov 7.

ASSISTANT: Can I know your boarding and landing airport codes?

USER: Sure, mu source airport code is PHX and the destination code is DFW.

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

USER: Yes, I need a single stopover in between my journey.

ASSISTANT: Please share if you have any other comforts in between your journey.

USER: No, other specifications. Thank you for asking.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by UA airline with the flight number-1006. Shall I book the connecting flight?

USER: Good to hear that, please proceed with booking.

ASSISTANT: Your ticket has been changed successfully.

USER: Thank you for changing my ticket.

ASSISTANT: It's pleasure to serve you.

USER: Most welcome. I appreciate your help.