You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am looking for a flight from MSP to SFO, can you help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My trip dates are 01 to 03 of Aug.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer to return in the evening.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Ok, could I have your name please?

USER: I am Benjamin Hernandez.

ASSISTANT: Thank you.