You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Please reserve me a flight ticket from IAH to SEA.

ASSISTANT: Can I know your travel dates?

USER: My travel dates are Jan 03 and Jan 05.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Let me know your departure and arrival timings.

USER: No, I don't have.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Can I know your name?

USER: I am Nancy Rodriguez.

ASSISTANT: Connecting flight can be booked with airline Delta for price 100 having flight number 1025.

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.