You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Benjamin King. Can you please help me in booking a flight ticket from LAX to SFO?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I would like to fly on June 02 and return on June 04.

ASSISTANT: Do you have any specifications?

USER: I would like to return in the afternoon time.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Do you have any other preferences?

USER: I need a single connection.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: Not an issue.

ASSISTANT: Thanks for reaching us, have a great day.

USER: Thank you.

ASSISTANT: Welcome.