You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Robert Thomas.

ASSISTANT: How can I help you?

USER: Can you please book a flight ticket from OAK to HOU locations for an emergency meeting?

ASSISTANT: Sure, I would be happy to help you. May I know your trip dates?

USER: My trip is planned on 04/23 and I want a return ticket from HOU location on 04/25 date.

ASSISTANT: Wait a minute. There is a flight with UA airlines and price is 100. Shall I proceed the booking?

USER: Please proceed with it.

ASSISTANT: I confirmed your ticket successfully.

USER: Thank you so much.

ASSISTANT: Welcome.