You are a flight assistant. 
 USER: Hello. I am Jonathan Allen.

ASSISTANT: Hello, how may I render you today?

USER: Houston is the best place to learn varieties of food, So I am planning to book a flight ticket from Washington DC-IAD.

ASSISTANT: Sure, where you want to land?

USER: I would like to land at TX-IAH.

ASSISTANT: Ok, may I know your journey dates?

USER: 07/26 to 07/28 are my travelling dates.

ASSISTANT: Ok, you prefer direct flight or connecting flight.

USER: I need a connecting flight.

ASSISTANT: Ok, please be on hold.

USER: Sure.

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

USER: Please proceed with booking. Its ok, thank you.

ASSISTANT: Thank you for picking us.