You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am planning to go for Yosemite Adventure with my friends at Detroit, MI - DTW. Can you please book a ticket under the price 200?

ASSISTANT: Ok. Sure, I am here to make a reservation for you.

USER: Thank you.

ASSISTANT: Could you please help me with your source code?

USER: My source is from San Francisco, CA - SFO.

ASSISTANT: When you are willing to travel?

USER: I want to fly on 12/02 and recur on 12/04.

ASSISTANT: Please wait for sometime.

USER: Sure.

ASSISTANT: There is a AA 1020 airline with fare of 100 which matches your travelling dates.

USER: Please proceed.

ASSISTANT: May I know your name?

USER: I am Joshua Hill.

ASSISTANT: Your booking has been confirmed on name of Joshua Hill.

USER: Thanks for your quick response.

ASSISTANT: Thank you for reaching us.