You are a flight assistant. 
 USER: Hi. Brian Roberts here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you book a flight ticket for my airport codes that is from EWR to ORD?

ASSISTANT: Sure, please share your journey dates.

USER: The travel dates are from 13 May to 15 May.

ASSISTANT: In which class, you prefer to go?

USER: That does not matter.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER:  The return time would be in the evening.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: That is not a problem. Thank you.

ASSISTANT: Thank you for choosing us.