You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to travel from San Francisco. Could you please help me with booking a flight ticket from SFO to IAD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are Aug 09 and Aug 11.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a flight with single connection limit.

ASSISTANT: Do you have any time preferences on your journey? May I know your name for the documentation process.

USER: I would like to depart in the morning time. Sure, myself Alexander Jones.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no flights are available on your specified dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Welcome, thank you for the information.