You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: Myself Kevin Phillips.

ASSISTANT: By what way, can I support you?

USER: I would like to go for a round trip to Charlotte to enjoy the pre Christmas celebration at my uncle's house. So, please help me with booking a flight ticket.

ASSISTANT: Sure, Is there any restrictions on ticket fare?

USER: I have planned to spend 200.

ASSISTANT: When will you prefer to travel & return?

USER: My preferable dates are 12/23 and 12/25.

ASSISTANT: What are the airport codes that you wish to board and land?

USER: It's a round trip to CLT.

ASSISTANT: Thanks for the details, please wait.

USER: Ok.

ASSISTANT: We found a Delta airline, with fare of 100 available for your journey.

USER: Perfect, book it for me.

ASSISTANT: Your ticket has been reserved with 1008 airline.

USER: Thank you for your assistance.