You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help that you need from my side?

USER: I am planning to spend some time with my cousin at San Francisco. Can you book a flight for me?

ASSISTANT: Sure, I am oblige to help you and may I know your travelling dates?

USER: I will travel on Oct 22 and return on Oct 24.

ASSISTANT: Can you please provide your genesis and terminus airport codes?

USER: My source point is EWR and my destination is SFO.

ASSISTANT: Do you have any specific departure and arrival timings?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: Yes, I am not happy with low-cost airline service please provide me normal-cost airline.

ASSISTANT: May I know your name for further assistance?

USER: My name is Amanda King.

ASSISTANT: Please give me a moment.

USER: Sure, please find a connecting flight.

ASSISTANT: No flight has found on your journey dates to reserve a flight ticket for you journey.

USER: Ok, thank you for the information.

ASSISTANT: You are most welcome and thank you for reaching us.