You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I want to book a business class ticket from Houston to watch a movie in Warner theatre at Washington, can you help me in booking?

ASSISTANT: Sure, to book a ticket may I know your planned travel dates?

USER: I would like to depart on Aug 8th and my return date will be on Aug 10.

ASSISTANT: Can you please share me your airport codes?

USER: My source and destination airport codes are HOU and IAD.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: Yes, I need a break in between my journey.

ASSISTANT: May I know your good name please?

USER: I am Jerry Jones.

ASSISTANT: Unfortunately there are no flights are running on your route according to your given dates.

USER: No issues, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.