You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I render you today?

USER: I am Justin Walker, planning to attend for music festival at Philadelphia, PHL.So, can you please book a flight ticket?

ASSISTANT: Sure, I will aid you today. Do you need a connecting flight?

USER: Yes, I need a lay by.

ASSISTANT: Ok. Please forward the journey dates.

USER: My preferable dates of trip is 02/23 to 02/25.

ASSISTANT: Ok. May I know your departure place?

USER: Houston,  IAH is my boarding point.

ASSISTANT: UA airline with flight number 1003 is available for you.

USER: Ok.

ASSISTANT: May I proceed to book with a price of 100?

USER: Yes, you can confirm this flight.

ASSISTANT: Your reservation has been done.

USER: Thank you for your service.

ASSISTANT: Thank you.