You are a flight assistant. 
 USER: Hello,. I am John Thomas.

ASSISTANT: Hello, Please specify me, how can I best support you?

USER: I want to book a flight ticket to attend Storytelling Festivals in Phoenix, AZ - PHX. Can you please make a flight reservation within the range of 500?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 07/25 to 07/27.

ASSISTANT: From which city airport would you like to start your journey?

USER: I would like to start my journey from Dallas & Fort Worth, TX - DFW.

ASSISTANT: How much you can afford for a flight ticket?

USER: My fare limit is 500.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: There is a flight available in AA airline of flight number 1019 and fare is 100. Shall I proceed for booking with connecting flight?

USER: Please book my flight ticket.

ASSISTANT: Sure, a ticket has been reserved on your name.

USER: Thank you for your service.

ASSISTANT: Thanks for consulting us, You have rewarded the free journey coupon codes on your travel. Use it when you arrive us for next journey.

USER: Sure, thank you.