You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to go for my grand mother memorial service on 06/18. Can you book a ticket for me?

ASSISTANT: Sure, please share me your airport codes?

USER: My source : Washington DC - DCA and My destination : Oakland, CA - OAK.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are 06/18 and 06/20.

ASSISTANT: Thanks for your details.

USER: OK.

ASSISTANT: We found 1005 AA airline with single connection and price of 100. Shall I proceed with booking?

USER: Perfect, you may please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Can I know your name?

USER: Deborah Allen is my name.

ASSISTANT: Thank you for reaching us.