You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you book a ticket on name Rachel Carter to LAX?

ASSISTANT: Sure, may I know your source code please?

USER: I will depart from DCA.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a connecting flight.

ASSISTANT: Please share your travelling dates.

USER: My travel dates are 04/24 and 04/26.

ASSISTANT: Please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Wait a minute please.

USER: Ok.

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

USER: Ok, no issues. Thank you for availing me.

ASSISTANT: Thank you for opting us, have a good day.