You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Emily Gonzalez want to visit Washington, can you book a ticket from SFO to IAD?

ASSISTANT: Sure, please tell me your departure and arrival day.

USER: Sure, my travelling dates will be 12/06 and 12/08.

ASSISTANT: Emily, there is a nonstop flight to your final destination. Are you interested to travel in this flight?

USER: Can you please check for 1 connection flight?

ASSISTANT: Emily, as per your requested connection limit all flight tickets are sold out in advance.

USER: That's ok, thank you.

ASSISTANT: Thank you for consulting us, have a great day.