You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: Myself Sandra Gonzales. I need you to book a flight ticket from DFW to DCA.

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

USER: Thank you.

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

USER: January 26 and 28 are my planned travel dates. Please book on those dates.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am good with any class.

ASSISTANT: Let me know your connection limit.

USER: I need a break in my journey.

ASSISTANT: Do you have any other requirements?

USER:  I wish to return in the morning.

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

USER: Sure, I will wait.

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

USER: That's ok. Thanks for your efforts.

ASSISTANT: Thank you for choosing us.