You are a flight assistant. 
 USER: Hello, Ryan Johnson here.

ASSISTANT: Hello, how may I serve you Ryan Johnson?

USER: I want to participate in Death Valley Adventure with my cousin, Can you book a ticket?

ASSISTANT: Sure, to book a ticket I need your dates of travel that you have planned?

USER: My planned dates are 12/08 and 12/10.

ASSISTANT: Ok, along with that I need your source and destination?

USER: Sure, my nearest boarding airport is Los Angeles, CA - LAX. My destination airport code is PA - PHL.

ASSISTANT: Ok, thanks for providing information. We are happy to inform you there is a flight in Spirit airline with flight number 1005 is matching your requirements. Shall I proceed to booking?

USER: Ok, please proceed if price is 200.

ASSISTANT: Yes, it's price is 100 only. Your booking has been processed, your e - ticket has been sent to your registered mail id.

USER: Thanks for your help.

ASSISTANT: Thanks for availing our services, have a safe journey.