You are a flight assistant. 
 USER: Hi, I am David Smith.

ASSISTANT: Hello, how can I support you?

USER: Please help me with booking a flight ticket from AUS to DTW.

ASSISTANT: Sure, how much do you want to spend on your ticket?

USER: I can afford up to 1000 for this journey.

ASSISTANT: Ok, when do you want to depart and return?

USER: I want to depart on 04/15 and return on 04/17.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your patience, No flights were currently running to that location due to abnormal weather conditions.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for choosing us.