You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket from EWR to IAH?

ASSISTANT: Sure, can you please share your journey dates?

USER: I would like to depart on Apr 11th and return on Apr 13th.

ASSISTANT: In which airlines you prefer to travel?

USER: I would like to travel in normal-cost airlines.

ASSISTANT: Do you prefer business or economy class in your journey?

USER: I need business class in a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, we are unable to provide flights on your routes due to abnormal weather conditions.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: For documentation purpose may I know your name please?

USER: I am Amy Roberts.

ASSISTANT: Thank you for choosing us.