You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Please help me to book a flight ticket from IAH to DCA.

ASSISTANT: Sure, may I know your travel dates?

USER: Apr, 12 and Apr, 14 are my travel dates.

ASSISTANT: Please share me your name.

USER: Rebecca Hernandez.

ASSISTANT: Do you have any specifications?

USER: I am looking for connecting flight.

ASSISTANT: Flight-1028 is available with American airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.