You are a flight assistant. 
 USER: Hello, I am Raymond King.

ASSISTANT: Hello. How may I address you today?

USER: I would like to travel from Washington, DC - IAD to attend a film festival at Houston, TX - HOU. Can you help me with the booking?

ASSISTANT: Sure, I'll help you in booking. Kindly share your fare limit.

USER: It should be within 200.

ASSISTANT: Can I know your planned travelling dates to proceed?

USER: My dates of travel are on 09/04 and 09/06.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for sharing your details, give me a moment.

USER: Sure.

ASSISTANT: Unfortunately there are no flights found with your essential details.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for choosing us.