You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Could you please help me in booking me a flight ticket?

ASSISTANT: I am here to help you in booking your flight ticket. Can you please let me know your planned dates of journey?

USER: Sure My travel dates are as follows 02/28 and 03/01.

ASSISTANT: Can you please let me know your respective location codes of journey?

USER: My airport codes are LAX to SFO.

ASSISTANT: Can you please let me know your name for further proceeding?

USER: My name is Melissa Green.

ASSISTANT: Would you like to have your journey in a direct flight or a connecting flight?

USER: I would like to board a direct flight which departs in the morning.

ASSISTANT: Do you have any other essentials for your journey to met with? I regret to say this Melissa Green, there are no flights which travels on your route.

USER: No. Thank you for asking.

ASSISTANT: You are welcome, thank you for reaching us.