You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Andrew Lopez. Can you book a flight ticket to Dallas, DFW to attend an interview?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Can you please forward your journey dates that you prefer to travel?

USER: Sure, I will fly on 12/15 and will be return on 12/17.

ASSISTANT: Do you have any restrictions on price limit?

USER: Yes, I need a flight ticket under the range of 5000.

ASSISTANT: May I know your boarding point please?

USER: I am boarding at Charlotte, CLT.

ASSISTANT: Thank you for sharing your details, please wait for a while, let me check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: We found a connecting flight with Delta airlines, flight number 1004 and the fare of 800. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice journey.