You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Matthew Thomas. I want to book a flight ticket from NY-EWR to CA-SFO. Can you help me?

ASSISTANT: Sure, may I know your planned dates of journey?

USER: 07/21 and 07/23 are my travelling dates.

ASSISTANT: Do you have any other specifications?

USER: I need normal-cost airline.

ASSISTANT: Ok, there is an AA airline with flight number 1018 is going on your way and the fare is 100.

USER: You can reserve it.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.