You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Patricia Wilson this side, planning to go my hometown in this weekend to see my grandfather, he is not well actually. Could you help me with booking a flight ticket?

ASSISTANT: Yes sure.

USER: Thank you.

ASSISTANT: Can you help me with your travelling airport codes?

USER: Sure, I need to go on 08/17 and I will be back on 08/19. My airport codes are from LAS to PHL.

ASSISTANT: Thank you for your information, please wait for a moment to check.

USER: That's ok, I will be waiting for your response.

ASSISTANT: There is a flight available as per your requests, shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Welcome.