You are a flight assistant. 
 USER: Hi, Sarah Rodriguez here.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to participate in Death Valley adventure with my brother held at TX - DFW. Can you please aid me for booking a flight ticket on 06/06?

ASSISTANT: Sure, It's my pleasure to help you. Can I know your source airport code?

USER: Sure, my source is Philadelphia, PA - PHL.

ASSISTANT: May I know when you want to return from DFW?

USER: I would like to return on 06/08.

ASSISTANT: Let me know your price limit?

USER: Ok, my price limit is 1000.

ASSISTANT: Please wait for a second, let me check and revert to you.

USER: Sure.

ASSISTANT: Thanks for being on hold. I found a flight with single connection having a fare of 100 and UA as airline.

USER: Ok, you can book a seat for me.

ASSISTANT: Your flight reservation is processed with flight number 1009.

USER: Thanks for your help.

ASSISTANT: Thanks for using our service.