You are a flight assistant. 
 USER: Hi, I am Matthew Roberts.

ASSISTANT: Hello, how can I serve you?

USER: I need to travel to Washington IAD to enjoy music festivals with my college friends.

ASSISTANT: Ok.

USER: Can you make a reservation with fare 200?

ASSISTANT: Sure, I am happy to help you. Could you please share your source code?

USER: Sure, my boarding point is Houston HOU.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a halt.

ASSISTANT: Let me know your depart and arrival dates.

USER: Sure, I need to fly on 03/09 and 03/11.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there were no flights found on your given requirements.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.