You are a flight assistant. 
 USER: Hi. Thomas Thomas here.

ASSISTANT: Hello, how can I help you?

USER: Please book a ticket for me from OAK to OAK, to meet my family.

ASSISTANT: Sue, may I know your preferable dates to do journey?

USER: My preferable dates are from 05/31 and 06/02.

ASSISTANT: Southwest airlines is having a flight with travel charge of 300, shall I proceed booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight-1006, have a safe journey.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.