You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you now?

USER: I need to travel from IAD to SEA, can you help me with that?

ASSISTANT: Sure, I will help you. Please, share me your journey dates.

USER: My trip dates are 09/06 and 09/08.

ASSISTANT: Let me know your limit on number of connections that you prefer.

USER: I need a single connecting flight.

ASSISTANT: May I know your other requirements for your journey?

USER: Nothing more.

ASSISTANT: Can I know your name to proceed further for documentation purpose?

USER: I am Sharon Phillips.

ASSISTANT: Sorry to say that, we have not found any flights running on your desired routes as per your specifications.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.