You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Jones.

ASSISTANT: How can I assist you?

USER: I need to book a ticket from JFK to OAK, can you help me in booking a ticket?

ASSISTANT: Sure, please share your travelling dates.

USER: My travelling dates are Oct 11 to Oct 13.

ASSISTANT: Ok, Do you have any connection preference?

USER: I need one halt in my journey.

ASSISTANT: How much can you afford for this ticket?

USER: I can pay 5000.

ASSISTANT: Please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Ok, thank you for information.

ASSISTANT: Thank you for reaching us, have a nice day.