You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I want to book a business class flight ticket to attend an business meeting at TX. Can you help me?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: July 14th and 16th are my travelling dates.

ASSISTANT: Please let me know your connection preference.

USER: I need a break.

ASSISTANT: Kindly share if you have any class preference.

USER: I have already  mentioned it above.

ASSISTANT: May I know your source and destination airport codes?

USER: EWR and DFW are my airport codes.

ASSISTANT: Can I know your name please?

USER: Charles Robinson here.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

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

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issue. Thank you.

ASSISTANT: Thank you for approaching us.