You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Cynthia Hill here.

ASSISTANT: How can I help you?

USER: I would like to book a ticket from DFW to CLT, can you please help me with that?

ASSISTANT: Can I know your travelling dates?

USER: The travel dates are from 04/17 to 04/19.

ASSISTANT: Do you have any preference?

USER: I would like to return during evening time.

ASSISTANT: Connecting flight can be booked with United airlines for price 200 having flight number 1024.

USER: Please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.