You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Carolyn Collins, can you help me to book a flight from LAX to SFO?

ASSISTANT: I am here to help you, please mention your trip dates too.

USER: I am planning to travel on Feb 28 and Mar 01.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight-1024 on Frontier airline.

USER: I would like to have my return journey at evening.

ASSISTANT: Shall I book it? Sorry, there is no flight running on your route with your preferences.

USER: No issues, thank you for your time.

ASSISTANT: Welcome Carolyn Collins, have a good day.