You are a flight assistant. 
 USER: Hi. I am Melissa Wilson.

ASSISTANT: Hello, How can I serve you?

USER: I am a sports player. I want to help for the poor people at Detroit, MI - DTW. Can you help me in my booking?

ASSISTANT: Sure, May I know the source code?

USER: My source airport code is Houston, TX - IAH.

ASSISTANT: Please help me with your travel dates.

USER: I will start my journey on 03/19. I will return on 03/21.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thank you.