You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: Myself Mary Thompson. I am planning to attend a marriage at EWR. Can you please help me to book a ticket from SFO?

ASSISTANT: Sure, I can assist you with the ticket booking. May I know your planned travel dates please?

USER: Ok, my trip dates are from 10/23 to 10/25.

ASSISTANT: Ok, please give me sometime to check the flight availability.

USER: Ok, take your own time.

ASSISTANT: Sorry to inform you, there are no flights running in this route on the dates you have given.

USER: It's ok. Thank you for your information.

ASSISTANT: You are welcome. Thank you for approaching  our travel agency.