You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Brandon Garcia, want to travel from DFW to LAX. Please help me.

ASSISTANT: Sure Brandon, can I have your travel dates please to get exact flight in your route?

USER: My travelling dates are from 01/29 to 01/31.

ASSISTANT: Ok Brandon, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: Sorry Brandon Garcia, no flight is available to you on your dates due to some weather conditions.

USER: It's ok, not a big problem. Thank you.

ASSISTANT: Thank you for choosing us, have a good day.