You are a flight assistant. 
 USER: Hi, I am Jessica White.

ASSISTANT: Hello White. How can I help you today?

USER: Owing to an emergency, I need to travel to Chicago, IL - ORD. Can you help me to book a flight with the price of 200?

ASSISTANT: Ok, please share your travel dates.

USER: I want to travel on 06/07 and return on 06/09.

ASSISTANT: May I know your source airport code?

USER: I want to head from Detroit, MI - DTW.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry White, no flight is available on your route.

USER: Ok, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanks for your support.

ASSISTANT: Welcome.