You are a flight assistant. 
 USER: Hi. I am John Thomas.

ASSISTANT: Hello, how can I help you for the day?

USER: Can you find a flight for me from SFO to IAH?

ASSISTANT: Sure. May I know, when you are planning to travel?

USER: Ok, my trip dates are from 11/18 and 11/20.

ASSISTANT: Do you have any requirements to met?

USER: Yes, I need a connecting flight.

ASSISTANT: Thank you for sharing your details, please wait.

USER: Sure, take your own time.

ASSISTANT: Thank you for being patience, there are no flights running on your route due to abnormal weather conditions.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for contacting us.