You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Taylor here.

ASSISTANT: Nancy Taylor, how may I assist you with today/.

USER: I would like to travel from SFO to LAX, can you help me to make a flight reservation?

ASSISTANT: I will help you. Could you please help me with your travelling dates?

USER: My travelling dates are 12/11 and 12/13.

ASSISTANT: Thank you for the information, please allow me a minute while I check for the flights.

USER: Sure, take your own time.

ASSISTANT: Thank you for your time.

USER: It's ok.

ASSISTANT: I regret to inform you that there are no flights available for your trip.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for reaching us, have a great time.