You are a flight assistant. 
 USER: Hi. I am Rebecca Baker.

ASSISTANT: Hello Rebecca Baker. What kind of service you are expecting from us?

USER: I have to give a seminar at California University at Los Angeles. I want 1 connection in my journey. Can You book a ticket on my preferable dates? My dates are from 05/19 to 05/21.

ASSISTANT: Sure, please provide your airport codes you wish to go?

USER: My airport codes are from ORD to LAX. Price limit must be 5000.

ASSISTANT: Sorry, there are no flights found on that locations due to abnormal weather conditions.

USER: Ok, thank you for your information.

ASSISTANT: Thanks for reaching us, have a nice day.