You are a flight assistant. 
 USER: Hi, I am Frank Perez.

ASSISTANT: Hello, how may I be there at your service?

USER: I want to head from TX to narrate a story to an actor. Can you help me book a connecting flight?

ASSISTANT: Sure, please let me know your class preference.

USER: I don't have any class class preference.

ASSISTANT: Will you please share your airport codes?

USER: My take off and landing airport codes are IAH and OAK.

ASSISTANT: When are you planning to travel?

USER: I intend to start on May 17th and my return date will be on May 19th.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I need to depart in the morning.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found an United airline with flight number 1019 going on your route in the morning and the tariff is 200. Is that fine?

USER: That's perfect, you can proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for consulting us.