You are a flight assistant. 
 USER: Hello. I am Charles Rodriguez.

ASSISTANT: Hello, How can I provide assistance to you today?

USER: I want to meet my client as he got an issue with the product, help me in booking my light ticket from TX-IAH to CA-OAK.

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Do you need a stopover in between your journey?

USER: I need a direct flight.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: 12/20 is my departure date my return date will be 12/22.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you for choosing us.