You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Clark.

ASSISTANT: How can I help you at this moment?

USER: I am planning to book a ticket from SFO to CLT. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: I would like to travel on Feb 07 and return back on Feb 09.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: My depart time and return time should be evening.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I am looking for a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching us.