You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you today?

USER: I am Jonathan Taylor. I am planning to celebrate my sister at a famous pub in Los Angeles LAX. Can you avail me flight ticket under a fare of 200?

ASSISTANT: Sure, we are happy to assist you today.

USER: Thank you.

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

USER: I will fly on 09/17 and intend to return on 09/19.

ASSISTANT: Please provide me your nearest airport code that which makes your journey comfortable to start.

USER: My starting point is Houston HOU.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flights in between your journey routes due to heavy floods at your destination point.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.