You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How may I amend you today?

USER: I am Jacob Jackson. Please book me a flight ticket to Washington, IAD to participate in bike ride competition.

ASSISTANT: Sure, I will check the flight to Washington.

USER: Ok.

ASSISTANT: May I have your origin point?

USER: My origin airport is Houston, HOU.

ASSISTANT: What are your trip dates please?

USER: My trip dates are 12/02 - 12/04.

ASSISTANT: Is there any restrictions in travel?

USER: Yes, I need a flag stop in between my trip.

ASSISTANT: Ok. Thanks for sharing the details.

USER: Ok.

ASSISTANT: We did not find any flight will run on those respective dates due to bad climatic alerts.

USER: Ok, I will choose other airline. Thank you for quick response.

ASSISTANT: Thank you for choosing us. Have a great day.