You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book a flight ticket with the name of Cynthia Walker?

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: May I know your airport codes?

USER: My airport codes are, PHL to LAS.

ASSISTANT: Can you please share your planned travel dates?

USER: My journey dates are on 10th and 12th of November.

ASSISTANT: Do you have any specifications?

USER: I prefer a flight with single stopover.

ASSISTANT: OK, please wait a minute.

USER: Sure.

ASSISTANT: We found an airline UA with flight 1017 having a fare 100 with stopover. Shall I proceed with booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you.